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What happened to Hierophant Green's painting power?
In episode two of Stardust Crusaders, Kakyoin paints red paint on a horribly drawn painting of Jotaro, specifically, on his leg. Jotaro gets a cut on his leg somehow. But Kakyoin never does it again. Why didn't he use it in more battles?

He could've used it when fighting High Priestess and won easily by erasing her teeth.

I'm pretty sure he never used it again because during the High Priestess arc, they were underwater and I'm sure Kakyoin would not have brought a canvas while they were on a submarine, but even if he did, they were underwater the whole time, making it pretty much impossible for him to paint under it.
And before you say "Oh, he could have injured Midler and make her revoke her stand", he didn't know what she looked like, and he needs to know what his victims look like before he paints them.

I like your answer. It takes common sense and actually uses it, instead of saying "Araki Forgot". Really creative.

@okaythatscool it was never stated that he had such ability in the first place. Never mentioned in stand stats description (in the manga), never to be seen again. It's common sense to think it was a prop to raise suspicion of this unknown character.

Because he never had such an ability.
The painting was just a prop. As soon as Kakyoin stroke the canvas, he had Hierophant cut Jotaro. While this is not stated, it's heavily implied because as soon as he painted Jotaro, he threw the painting into a tree, signifying its unimportance, instead of using it again when he confronted Jotaro.

Wouldn't Jotaro just have seen Hierophant?

Kakyoin was camping in a tree. I don't think he would've seen Hierophant because, after the attack, Kakyoin de-summoned Heirophant.


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What's the meaning of ending credit of Great Pretender that have cat on it?
In the Great Pretender anime, there is something that bothering me. What's the meaning of the ending credit scene that represent a bunch of cat? I mean the anime is about fraud and swindling, but why they put cat instead of other than  in the ending credit scene? Does it have a meaning at all with the Great Pretender plot story (fraud and swindling) like symbolism or something like that?

The end credit has Freddie Mercury's cats.

This is primarily a homage to Freddy Mercury, most notably the one song with the same name as the title of the series.

Freddy Mercury also owned many cats and had a very close relationship with them on top of being influences for his works. It's a very fitting tribute.

The easiest answer is:
Cat burglar (i.e. thief etc). Makes sense for an anime about swindlers.
It could also be a suitable comment on the phrase "Great Pretender." Have you ever heard that cats roam for miles away from their house when they are not at home? They could lead a double life and you might never know. At least 1 cat in my life has done this: my neighbours cat became very friendly with us and spent a lot of time with us, and the neighbour didn't know/notice until we told them a year or so later.
So cats are suitable "Great Pretender." Also, it could be to do with the fact that the last line of the song Great Pretender is "pretending that you're still around," as we see the cat go home to its family. This is related to the fact that the protagonist of the anime is an orphan whose family has died, and so he can never go home to them, and is "pretending that [they're] still around." The fact that he tries to get an honest job to honor his parents memories and expectations enforces the fact that he has not forgotten them.
The cat's coat matches a tie or shirt or something the protagonist wears at some point I think, but not certain about that bit.

I know this is random but this is how I interpreted it. Cats are constantly showing up in the show: from Edamura's connection with his mom, to Laurent and Dorothy having a cat in the ending credit. When you stop and watch the ending credit in detail, you can see a woman with a bob haircut with pink underneath. This woman is Dorothy (she'll appear in season two when it comes out on Nov. 25th in the US). You can see Laurent hold a ring with a blue gem at the end of the final case of season 1, this same ring is in the ending (the entire time) where the woman is shown in the blue reflection of the ring. When the woman picks up the cat, she's shown being intimate with a man. This man's silhouette is very similar to Laurent's (see his hair shape and body build), because it IS Laurent.(with dorothy). Now, another way this could be interpreted is the way a cat lives being the complete opposite of the way Laurent lives.(A cat living a calm, simple life with next to no danger) He's constantly in dangerous situations and his life is everything but simple and calm. (I'm actually gonna write an essay for school about this so thanks for the brainstorming) I hope this helps! <3

SPOILERS FOR CASE 4 READ AT OWN RISK
Building of what drgharris said, cats are used to symbolise Edamura’s mother however, rarther than the cat being owned by Dorothy and Lauren, I believe the cat IS Lauren. (or symbolic of him anywayz) In the ending, we see this spotted cat swimming through the ocean, presumably the ocean which Dorothy drowned in (“drowned”) and then we see the cat be engulfed by black, then it sombrely walks through the black until it is picked up by Dorothy which then flips to a image of Lauren embracing Dorothy.
I believe the swimming was Lauren desperately trying to find Dorothy after being in denial of her death. Then being engulfed in the darkness is his depression after he realised she was gone. I would just like to state now that in case 4, I believe that cat that Lauren mistook for Dorothy was this cat in the ending. This ties in well because this cat braking a pot was what led Lauren to realise that Dorothy is truly gone and what made him fall into his depression.
In the ending, when the cat is embraced by Dorothy and it switches to a image of Laurent embracing Dorothy, the lyrics “I pretend your still around” are sang. I believe this is because Dorothy was the source of comfort for Lauren.
Through out the ending, we see multiple cats stress free just playing around. We also see the spotted cat stealing a pile of pancakes. This could be to represent the stress free lifestyle of the con artists.
I also believe that cats are symbolic for comfort and acceptance in great pretender. Edamura’s mother is associated with cats because she was content with her life and the way she died. She was happy to let go. She also acted as a comfort to Edamura. Then theirs Lauren who cannot accept that Dorothy is gone and pretends she’s still around as a source of comfort. Cats strive for comfort.
Also something I think might be important that I still can’t figure out is the ties to “the wizard of oz” and the great pretender.
Obviously, Edamura’s dads nick name is “Oz” and is commonly referred to as the “wizard”. Then theirs Dorothy, who shares the same name as the main character in the wizard of ozz. Is this a coincidence? I think not seeing that Dorothy isn’t very common of a name. The wizard was a conman in the end and wasn’t as powerful as he was hyped up to be. This has ties with Edamura’s dad who was a conman. However, I still can’t figure out how Dorothy ties into this.
Let me know if anyone figures this out!

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

sort: votes


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Who is kurenai?
Kurenai is not much popular character in naruto but she caught my attention during her fight with kisame and itachi. What is her background? How was she able to use gen-jutsu. Which clan she is from? Where are the other members of same clan. I can't find this information. Can some one light me up for the same.

Yuhi Kurenai was born into the Yuhi clan. It was not one of the large clans. She had a relationship with Sarutobi Asuma and was pregnant with their child when he died (in Shippuuden) and she was shown with a wedding ring when telling Shikamaru about it so they were presumably married.
In Boruto she's a member of the Sarutobi clan (presumably through marriage to Asuma).
She is a genjutsu master and she was the jounin sensei of team 8 (Kiba, Hinata, Shino) in Naruto.  The manga doesn't really have much about her backstory or abilities, but the anime had all sorts of flashbacks and filler episodes.
She is revealed to be a natural chakra sensor and to have Yin release as her chakra nature, rather than an elemental aspect. She shared an appartment with Anko for a while and they are friends outside of work. She is shown to have been 9 when graduating the academy and was on the same genin team with Asuma and Raido. In the flashbacks in the anime, her father is shown to have been an active shinobi during the Kyuubi attack.

You can check out the Narutopedia for more character info: https://naruto.fandom.com/wiki/Kurenai_Y%C5%ABhi

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


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How fast does Star Platinum punch?
Star Platinum punches fast. Really fast. MY question is "how fast does Star Platinum punch?" I've heard that he punches at speeds similar to Crazy Diamond, which punches at about 60MPH. Does he punch faster than CD?

(Physics calculations ahead)
Background info: Josuke says in episode 29 of DIU that from a certain distance, Crazy Diamond punches at about 60 kilometers/hour but if he got closer Crazy Diamond could punch at 300km/hour
In one of the first episodes of Stardust Crusaders, Jotaro takes a revolver pistol to his head about 4.5 inches away and catches it about 1.5 inches away from his head. The initial velocity a bullet would have after being fired from a revolver is 2600 feet/s or 792.48 meters/s and the average acceleration from a pistol is about 440,000 m/s^2.
Da maths:
To find the final velocity the bullet had after traveling the 3 inches (0.0762 meters) I used the Physics formula Vf^2 = Vi^2 + 2ad. with Vf being final velocity, Vi being initial velocity, a being acceleration, and d being distance.
Using the formula:
Vf^2 = (792.48 m/s)^2 + 2(440,000 m/s^2)(0.0762 m)
= 628,024.5504 m/s^2 + 2(33,528 m/s^2) = 628,024.5504 m/s^2 + 67,056 m/s^2 = 695,080.5504 m/s^2 square root(Vf^2) = square root(695,080.5504 m/s^2) = 833.7 m/s
Answer: With all these calculations, I found that Star Platinum stopped that bullet while it was travelling at 833.7 meters/s or 0.83 km/s. Sadly I did all this work for no reason LMAO
heres a link to a quora post: https://www.quora.com/Which-stand-is-faster-Star-Platinum-or-Crazy-Diamond-JoJo
This quora post explains it very simple that when Star Platinum battled Silver Chariot possessed by the Anubis sword, Star Platinum was able to defeat Silver Chariot while one of it's arms was going double it's usual speed.
We know that when Silver Chariot defeated Hanged Man, a stand that travels at the speed of light he was also able to predict where it was going and cut it while it was traveling, meaning That when Star Platinum was fighting Silver Chariot, Silver Chariot was stabbing/attacking at DOUBLE THE SPEED OF LIGHT meaning that Star Platinum punched faster than DOUBLE THE SPEED OF LIGHT. BRUH he's fast. Not to mention that he could also stop time even before he fought Dio without knowing it. So yeah, hoped this helped more than it wasted your time LMAO

Holy crap, that was a lot. Thank you so much for clarifying this. You deserve waaaaaaaaaay more credit for all this hard work you did.


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Is it explained anywhere how the Nine tails biju was kept in control by all its jinchuriki?
In Naruto, it is shown that Gaara’s One tail used to frequently take control and rampage the Sand village. Similarly, in Shippuden, it is shown that the Eight tails also used to go on rampage till Bee masters the tailed beast transformation.
How was it that the Nine tails only went on rampage when it was controlled by Obito? It is understandable that Hashirama maintained control as long as he was alive. But how did his wife and Kushina manage to control the beast when they were the jinchuriki?

Hashirama's wife, Mito and Kushina both belonged to the Uzumaki clan. It's as Kabuto said, the Uzumaki had life forces “as tenacious as a cockroach's”, because they were able to survive situations which would otherwise prove fatal for other people: Having a large amount of chakra was never what the Uzumaki were known for. They were always revered for their vitality.
The Uzumaki were also extremely skilled in sealing jutsu. In fact it was Kushina who taught Minato about fuinjutsu(along with Jiraya). All this enabled the Uzumaki to behave as the perfect Jinchurikis.


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Why does the Shield Hero manga have the qualifier "The Manga Companion"?
I was looking for manga adaptations of the Rising of the Shield Hero story and noticed something odd. Or at least something I haven't run into before.
The tittle of the manga was often appended with the qualifier "The Manga Companion", like on Amazon. I also saw the following phrase repeated some some stores:

This is the Manga companion to the Ultimate Light novel series.

What does the "companion" qualifier mean in this context?
Is it common for a manga adaptation of a light novel to have this qualifier?
Does it imply that the manga isn't intended to sand on its own, or am I just reading too much into the word?

In short, this was done by the publisher to prevent confusion, by indicating that it is the Manga companion to the original light novel.
Currently the light novel is sold under the same name, without the appended "The Manga Companion" which given the similar covers might lead to people buying the light novel when they intended to buy the manga, and vice versa.
As to why they chose "The Manga Companion" specifically over just "manga", I wouldn't know. Only One Peace Books would be able to tell us that.

Yeah, having "The Manga Companion" over just "Da Manga" is what's throwing me off. I might even reach out to the publisher about this.

@DJPirtu The word companion just means that it's not the original.  If it was called just the "The Rising of the Shield Hero Manga" you might mistakenly assume it was the original source material.


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In Monster Episode 5, how did Tenma know Johan's alternate name Micheal Reichmann
I am watching monster right now and in Episode 5, soon after the murder of Junkers, Tenma is shown investigating Johan's past using the name Micheal Reichmann. I seem to have missed where he got that name and how did he know where to go and do the investigation.

I haven't watched the anime, so I will refer to the manga.
In chapter 6 Mr. Junkers is hit by a car. Detective Runge mentiones that Junkers is a suspect in a series of murders. In chapter 7 Runge explains that there were four cases in whole Germany where childless couples were murdered.
When Tenma meets Johann and Junkers in chapter 8, Junkers explains that Johann hired him to help murder the four couples. Tenma tries to stop Johann, who wants to shoot Junkers, by saying that he knows Johann from when he was his patient. But Johann replies that noone knows him, neither the Lieberts (Johann was the foster child of the Lieberts when he was in hospital) nor the four couples.
By this statement you can draw the conclusion that Johann was also the foster child of the four childless couples he wanted to be killed. So in chapter 9 he probably just travelled to the places where those murders took place, one of them being Colonge where the murdered couple were the Reichmanns.


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Does the story of Dragon Quest continue after the anime?
I'm watching the animated remake version of Dragon Quest so I also started to watch the 1991-1992 anime version. I've read the anime version lasted 1 year on air (49 episodes, 1 per week) when the manga lasted 7 years. Does this mean there is more story after the 1991-1992 anime? Or they just compressed the story a lot?

According to Wikipedia (with a source):

The series adapts the events of the first 10 volumes of the manga, with initial plans to continue onward until scheduling and time slot changes at TBS lead to the series ending after 46 episodes. To accommodate the abrupt ending, [Riku] Sanjo [the manga's author] helped to provide an adjusted finale to the anime.

The manga apparently has 37 volumes, so yes, the story continues for a considerable amount past the point where the anime stopped.


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Name of famous noodle shop in Konoha village?
You probably already know Naruto Uzumaki's favorite food is ramen, but did you know that his favorite place to enjoy his favorite meal?

It is named Ichiraku Ramen:

Ramen Ichiraku is Naruto Uzumaki's favourite dining establishment. He
eats there regularly – usually stopping by between missions – and he
is often joined by Iruka Umino, another frequent customer.

Thank you very much. I voted for your detailed answer.


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Which chapter of the manga does the last season of Attack on Titan anime start in?
The last anime season of Attack on Titan anime started. If I want to get spoilers of the story and read the manga chapters from that point on, which chapter of the manga do I have to start in?

The latest episode (now Season 4, Episode 1) has covered Chapters 91-92.


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Did this stand do this to cause this?
(Spoilers for Part 3)
So, while Jotaro is fighting the antagonist of Part 3 in Egypt, he realizes he can:

stop time.

And he could do this all the time, he just didn't know about it.
With that said,

Could Star Platinum stop time as Jotaro shot the gun, and grab the bullet?

Could have? Maybe. But did he do it? Probably not at that time.
The reason why Star Platinum was able to catch that bullet wasn't because Star Platinum stopped time, but just because of it's immense speed and precision.
There's also some speculation that Jotaro isn't really able to stop time in the same way that The World can but rather that he is just so fast that it seems like time has stopped.

The speculation is false due to the nature of  the (part 6 spoiler) Made in Heaven ark.


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Whats that song on episode 489-500 of Naruto Shippuden
I just finished Naruto Shippuden and I would like to know what song was playing at the end of 489-500. This song would fit well in my playlist.
I do not want any answers such as ¨Google it¨. This is because I don't want any spoilers for Boruto.

"Empty Heart" by Anly


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Did Madara uchiha gave Might guy a new nick name or is he praising him?
We know that in the fight between Madara and Guy Madara declares he is the strongest taijutsu user is it nick name or is he praising him? We know Hanjo gave a nick name Sanin, and Minato nick named 'B' killer Bee.

No.  Madara was not giving him as a new nickname.  He was just acknowledging the strength of Might Guy.


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Is the entire second half of the original Naruto series just fillers?
I've been told that the entire second half of Naruto is fillers, if this is true then I wasted 3 months of my life

Yes.
The fight between Naruto and Saskue where the two ninja statues are is the "end" of cannon Naruto.
The manga then did a story about how Kakashi got his sharingan then went straight into what is "Naruto Shuppiden"


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What's wrong with Kagura's pronunciation of "ka-wa-wi-i"?
This is more of a Japanese language question, but since it's based on goofy anime scene, I thought I'd ask here.
The scene is from episode 88 of Gintama:
https://www.youtube.com/watch?v=2mBS9-EQbqw
Gin asks Kagura to go to the ladies' room with the other women on a group date and play up his good looks.  Paraphrased into English except for the word "cute," it goes like this:
Gin: "Remember what I told you to say?"
Kagura: "What do you think of the boys?  My favorite is that silver-haired guy.  He's ka-wa-i-i!"
Gin:  "Not like that!  Ka-wa-wi-i!"
Kagura:  "Ka-wa-wi-i!"
Gin:  "No!  Ka-wa-"  (here he chokes on his coffee)
I love this scene, but it's always bugged me that I can't tell what fault Gin is finding with Kagura's delivery that second time.  Their pronunciations sound identical to me, except that maybe Kagura might be adding an n sound to the end of hers.  If so, though, I'd expect Gin to tell her to drop it rather than say the word from the beginning again.
The only other possibility I can think of is that Kagura isn't saying ka-wa-wi-i very enthusiastically; in fact, she looks bored.  But then, Gin says it in a pretty flat voice too.
So is there some sound difference that's inaudible to this non-native speaker?  Or is it something else?

I have a hunch this is a reference to a Japanese-specific parody, but not yet confirmed by the Japanese fans themselves...

Gin: "Not like that! Ka-wa-wi-i!"
Kagura: "Ka-wa-wi-i!"
Gin: "No! Ka-wa-" (here he chokes on his coffee)

Kagura says Ka-wa-wi-n the second time.

If so, though, I'd expect Gin to tell her to drop it rather than say the word from the beginning again.

No one can tell what the writers want Gin to say instead.


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Is the proverb "When a man steps out of the gate, he faces seven enemies" a real one?
Recently I watched again the Kenichi anime, and I went several times through this proverb.
"When a man steps out of the gate, he faces seven enemies"  (e.g. episode 5)
Looks like a legitimate proverb, but trying to find its origin or references, I got nothing at all.
So I was wondering if somebody could have some references or sources about this proverb.
Thank you in advance. :-)

The proverb is real, although spoken differently.
In episode 5 of Kenichi: The Mightiest Disciple, Miu said the following proverb,

男子門口を出れば七人の敵あり (danshi kadoguchi wo dereba shichinin no teki ari)
A young man, if he steps out of the gateway, there are seven enemies (lit.)

The more known proverbs are:

男は敷居を跨げば七人の敵あり (otoko wa shiki'i wo matageba shichinin no teki ari)
男子家を出ずれば七人の敵あり (danshi ie wo izureba shichinin no teki ari)
男子門を出ずれば七人の敵あり (danshi mon wo izureba shichinin no teki ari)

which its interpretation is more about

A man has many competitors, if man comes out to society.

This can refer to education, career, and similar situations (basically: people are competing with each other outside; always be on your guard and do not open a chance to be used by others)
One of the earliest references is on Kunio Kishida's essay Nihonjin to wa? (1951) (Japanese), but no specific origin is known.

昔から、「人を見たら泥棒と思え」だの、「男子外にいずれば七人の敵あり」だの、とにかく、人間と人間との関係を、おのずから相親しむべきものとせず、かえって、互いに心の許せぬもの、油断をすれば隙に乗ぜられるもの、という風に教えているのである
Since a long time ago, there were sayings like "if you see a man, think of him as a robber", "if a young man goes outside, there are seven enemies", anyway, it is told that people should not be familiar with each other naturally, rather, they are unforgivable to each other, and if they are not careful, an opportunity can be taken.

Translation to Kunio Kishida's essay may be off... feel free to improve it!

Thanks a lot for those references and explanations.
Actually I was wondering if there was an explanation about the seven enemies.
I guess if it was general, it could have been said about "many enemies".
May those enemies be related to temptations like the seven sins ?

@OlivierM. I haven't found a deeper explanation than that, though the "seven enemies" is indeed interpreted as "various kinds of competitors" instead of a literal number.

Thanks a lot again for your help.
I'll see if I can dig in deeper.

Several variants of this proverb can be found on multiple sites but no direct origin is given:

"Once outside the gate, a man has seven enemies." (source)

"Seven enemies await outside every man’s gate" (source)

"As soon as a man leaves his house he has seven enemies." (source)

The only explanation of the meaning that I found for it was in Japan's New Middle Class by Ezra F. Vogel

Just as the Mamachi resident makes a sharp distinction between friend and stranger, so a large barrier separates family members from outsiders. Outside the home, one must be more formally dressed, more polite, more cautious, and more suspicious. In accord with the well-known proverbs, "If you meet a stranger, regard him as a robber," and "Outside your gate, there are seven enemies," a person is on his guard outside. (source)

There seems to be no deeper meaning behind it than to be wary of strangers.


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Why didn't Nagato give Naruto his Rinnegan?
Since Nagato was aware that he was going to die soon why didn't he give Naruto his Rinnegan? His was fully aware of his death and this is shown in episode 172-175 and also on Narutopedia. The Rinnegan isn't a curse but more of great power, Nagato could've easily had his eyes implanted into Naruto and Naruto would've been almost twice as powerful as Nagato and the Six Pains combined. Was there something that was blocking him from doing so such as a curse mark or something such as that?
This has been bugging me for a while, but to reason with my question I would like to explain how he could've implanted them, There are only two canon ways to attain the Rinnegan. (Apart from Ōtsutsuki) These ways are by getting it from someone else or by By Merging Indra’s chakra with Ashura’s. The obvious way he could've gotten it was by getting the Rinnegan from Nagato or stealing it from his corpse. Naruto is not greedy enough to steal it from his corpse but Nagato was definitely able to give him his Rinnigan, but this was the only way of him being able to because of his heratige, Nagato was a part of the Uzumaki clan but not the Ōtsutsuki clan so, therefore, he couldn't just implant them by touch or some sort of Jitsu. He has every reason to give his visual prowess to Naruto.

F.Y.I. Nagato was not mad or angry with Naruto in his final moments

Well if you think about it,

Would Naruto accept the Rinnegan, i doubt it...

Who would train him to use the Rinnegan... (Jiraya's Out Of The Picture :c)

Would the Nine-Tails React So Kindly To Naruto Getting Former Madara's Rinnegan... He's already angry to losing to Naruto, with his hatred with Madara on top i think that would make him think that Naruto is going to become the next Madara... Yeah that won't end well. It also messes up the story as Naruto probably won't be able to build a friendship with the 9 tails later...

Who would revive basically everyone in the Leaf... With Naruto having no clue how to... This messes up the story.

(This is a might 50/50) Saskue wouldn't be too happy with Naruto basically getting a much, much, more advanced Sharingan and he would probably focus his time getting a Rinnegan himself... Which messes up the story...


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One Punch Man After Season 2
I just finished binging One Punch Man Seasons 1 and 2, and I absolutely loved it. But it seems to me that the second season has an incomplete ending, and full of cliffhangers. I want to continue watching the main plot, but there are many confusing titles after the second season, and all of them are named "SPECIALS". So, which one should I continue with?

The specials are set inbetween or after the seasons, so in that sense for something animated it would be advisable to continue with the second season specials, with the chapter

Saitama and Those With Reasonable Abilities
Transcription: Saitama to Sokosoko no Nōryokumono-tachi

but those specials are mostly filler, meaning they add little to the general story and dont resolve cliffhangers. If you want something that resolves cliffhangers you won't find it yet in something animated, and you have to read the manga, or the webcomic, but the manga has become quite different than the webcomic, and it's going to be the manga what probably they use as original source material for the next seasons of the anime.
List of One Punch Man episodes

The reason why it feels incomplete it's because season 2 doesnt cover the whole arc - the arc is pretty long, so the studio decided to end season 2 somewhere after end of the tournament.
To be honest, the moment they picked as an ending for season 2 felt very random, probably production was a bit rushed.
Anyway, there's no wa to continue watching the main story.
You can try reading manga, but there's two versions: original one by ONE which is very rough in term of art, and Yusuke Murata which is an excellent looking redraw of an original manga, but the arc of Monster Association is still in progress
And as Pablo metnioned, the specials covers fillers that are mostly just silly comedy, but some are showing some backstory of characters like Fubuki or Saitama.


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Why don't titan shifters keep their napes hardened all the time
When Levi took down the beast titan in season 3 part 2, the beast titan mentions that Levi is too fast and that he won't be able to harden his nape in time. So why don't all titan shifters keep their napes hardened all the time?

The first ever hardening was seen in the female titan (Annie) which is not a natural which is learnt by the titan holder by doing some modification to the titan. Only armored titan is the one who has the natural hardening. So other titans who has hardening technique (As of now artificial hardening is learnt by Beast, Female and Attack titan.)
Well in the Anime you must have seen the Eren learns the hardening technique using the fluid which was given by Hanje. And Eren doesn't learns it right away, even though he had created a huge hardened titan body sculpture at the first time.
Later he used it to misguide Bertholdt when Armin was sacrificing himself so that eren will get some time to harden the whole titan body. That time Armin was buying some time so that eren will get enough time to do his job and also not to mention Bertholdt could only partially see Eren's titan because of the smoke caused by his own colossal titan.
So the main point is, if the titan doesn't has natural hardening then titan will take time to generate the artificial hardening. And whole process is time consuming, and causes energy drain to the titan holder.
Remember, titan holders have limitations on how many time they can transform throughout the day.
In manga, there is one scene which is not happened in the anime yet, its minor spoiler though:

In manga at one point, Reiner confirms that he will not be able to transform into titan because of energy drain.

To preserve their energy, so that if in case anything goes wrong in the fight and by mistake they get detached from the titan they will get another chance to transform into titan, but if they end up using all their energy they won't be able to transform into titan and will lose their life as well as the titan.
Even though if you think, when Levi attacked beast titan, Zeke lost his arms and legs so he won't be able to transform into titan anyway, but also remember that he had cart titan on his side to save him from Levi, which eventually happened!

Well this hardening is not much of the use when scouts use Thunder spears which destroys all the hardening (chapter 113). In below image as you can see Levi is overpowered here against beast titan. Not to mention that Levi is faster, has more skills than any scout, so it's really hard to get out alive for the titan holder when they face off Levi.

Prathamesh is right, but I would add that it's also a tactic to hide the hardening ability.
I assume that your question is mostly about why Annie, because she's the only one we know that can harden her nape any time she wants (Armored titan is completly diferent thing and Eren doesn't control that ability that well).
Annie doesn't use hardening ability all the time to lure enemies closer - seeing armored nape many scouts wouldn't attack it. but when they see it naked, they go directly for it, so Annie can harden the nape in the last second and kill her surprised enemies.
She actually almost got rid of Mikasa this way, one of the most dangerous scouts, but Levi saved Mikasa
Also, i believe Annie could harden only one part of her body at a time - so she was sometimes hardening her fists etc. so hardening only her nape would make her less capable and her task is not only to survive but also to capture Eren so she can't focus just on defending her nape all the time.


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How much does the ODM gear weigh?
The ODM makes people get airborne, look awesome and contribute to the fight against the enimeys of paradise. But how much does it weigh? People are constantly running with it so I assume it doesn't weigh that much, but I don't think its that light either.

It was never stated IIRC. Anything beyond that would be purely speculation.

What does IIRC mean?

IIRC - If I recall correctly...

The steel is super light, right? and the gas is heavier than air as stated by the mange attack on titan before the fall. But how heavy is the steel?

As I said, it was never specified so unless the mangaka reveals it, we would never know. We can only speculate. Also, the materials used (iron bamboo and ultrahard steel) are both fictional and were never discussed in depth so there is no way to know how similar or different they are to real world materials.

which parts are made of iron bambo and which parts are made of ultrahard steel?

It was stated in the manga. Iron Bamboo was the one used for the earlier version of the vertical maneuver equipment (Before the Fall). Ultrahard steel is the one currently used after the events of Before the Fall.

Like few people stated in comments, the information wasnt given to us by the author.
But even we ever gt that info from Isayama, it would still b just his speculation
There's a fan-made ODM, you can watch it on youtube.
The weight of it was 6.6 lb, but i believe more professional ODM gear would be heavier.
But for sake of speculation lets say 6.6 lb is down limit of the ODM weight.
https://www.youtube.com/watch?v=dUr452RXJgw&feature=emb_title
So i tried to figure out what's the upper limit.
Anyway, the fact that they can run in this ODM gear is actually very important information.
Soldiers can run with a full equipment, right?
I googled that US soldier are carrying at average at least 97 pounds, actually more than medieval armors lol.
But i don't think its any reliable information, because soldiers are carrying a ton of equipment and ODM gear doesn't have much equipment - it need to be as light as possible.
SO maybe a Civil War soldier? He was lighter, he carried about 60 lbs.
But saying the ODM weight something between 7 lb to 60 lb... its still not satisfying answer.
So i tried a different approach.
I tried finding oxygen cylinder similar to the one used in ODM gear.
https://qd-ruiming.en.made-in-china.com/product/oBaQnSjTVLRE/China-Competitive-Price-Portable-Oxygen-Cylinder-with-Valve.html
it weigh 2.8 km (about 6 lbs) (the smallest one)
We need two, so it's about 12 lbs
Apparently normal size medieval sword weighs 2.5-3.5 lbs.
http://www.thearma.org/essays/weights.htm#.X_DRzzSg9aQ
Since we have 8 blades and 2 tilts...
lets say we have 2 full weight 3.5 lbs and 6 blades with weight of 2.5 lbs
2x3.5 = 7. 6x2.5 = 15. 7+15 = 22lbs
Lets add all the stripes (I would say max 2 lbs) and the mechanism - 3 lbs.
So my guess is 12+22+2+3= 39 lbs
IN CONCLUSION: Im speculating te weight of ODM is 39 lbs.I might be wrong, but its definitely something between 6.6lbs - 60 lbs.
BUT AGAIN, it's just a speculation and nothing more! x)


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Was "archaic Japanese" used to narrate historical anime series?
By historical anime series, I mean shows that portrayed important historical characters and has a storyline set during monarchial and feudal period of Japan.

Japanese language has undergone a vast transformation. The order was somewhat like:
Old Japanese -> Early Middle Japanese -> Late middle Japanese -> Early modern Japanese -> Modern Japanese
The Japanese spoken today differs from that spken during those times. I am assuming that the old Japanese is considered archaic and obsolete (just like Shakesperean English is obsolete today). So, did anime series whose story is set during those times used a different kind of Japanese? Did VAs used "archaic Japanese" for such roles or went with normal Japanese? Or did they worked with dialects*?

*FWIW, I found this piece of information:

Modern Japanese is considered to begin with the Edo period, which lasted between 1603 and 1868. Since Old Japanese, the de facto standard Japanese had been the Kansai dialect, especially that of Kyoto. However, during the Edo period, Edo (now Tokyo) developed into the largest city in Japan, and the Edo-area >dialect became standard Japanese.

So, since Kansai dialect was the standard Japanese during those times, VAs who know Kansai dialect might be suitable for such roles and story. Did historical anime used heavy dialects to give an impression of "archaic Japanese"?

Related: Why does Himura Kenshin say ～ござる

Unlikely.
Probably not the answer you're looking for but I also haven't watched every single historic feudal Japan anime so I can not definitely say for certain it doesn't exist.
Authors and script writers write for a modern audience who understand best a modern, living language. So it's rather unlikely that the majority of a work be entirely or heavily in an archaic language. Even for English, how many modern TVs or cartoons can you find that make heavy use of Modern English or better, Old English? I certainly cannot think of any aside from works inspired directly from classic works (Shakespeare, as mentioned, is a prime example).
There's a limit to how much archaic dialogue you give your characters. At best, characters are given occasional language quarks to remind the viewer of the setting but any more and you would lose the audience (or at least transform a light easily readable manga into a in depth literature analysis).
While I agree it would totally cool if there existed historical correct voice acting in anime or even manga written in ancient scripts, the appeal of these works is quite limited (think of the translation work for even the native speakers !)
I would also like to point out even within modern Japanese, people of different ages and regions speak very differently (not representative of voice actors in anime). While Kyoto used to be the capital of Japan, not Edo, even the current Kansai dialect differs from a historic accent. According to a few native Kansai, anime has poorly or inaccurately represented even their accents.


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What does it mean exactly that the Ackerman clan can manifest "the power of the Titans" as humans, without becoming a Titan?
In the Attack on Titan wikia they say that the Ackerman clan can "manifest "the power of the Titans" as humans, without becoming a Titan". What does this mean exactly? The titans have regeneration and a huge strenght which I doubt the Ackerman clan have, even if they are above average humans. So, what would those powers be then?

Spoilers:

 In AoT: It was said that the attack titan is able to see the memories of the past and future users. It is also said that the Ackerman's are able to draw upon the collective knowledge of past Ackermans. One of the main reasons he's so good against the titans, the same with Mikasa. But since she's younger she hasn't had as much time to see their memories as Levi has. (Will update with sources when I find them) In the meantime, I hope this helped.

As far as I know, the king of the walls made some changes in their gene.
first, they protect the king with their life. to do so, in some acute situation they can become as powerful as a titan (physical power I mean :D)
EDIT:
it's called the Awakened power for more information about it you can check this  out


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Why Willy Tybur claimed Eren could attack using the colossus Titans in the walls, if supposedly Eren can't control that ability?
In episode 5 of the last season of the Attack on Titan anime, Willy Tybur claims Eren Yaeger could use the colossus Titans in the world to attack, because he isnt tied by the oath of peace as those who have royal blood are. But in the other hand, supposedly for not having royal blood Eren can't control other Titans with the Founding Titan ability. Then, why Willy Tybur claimed Eren could attack using the colossus Titans in the walls, if supposedly Eren can't control that ability?

Because he has the Founding Titan. All he needs is to be in contact with someone of royal blood.

There are two reasons.
First one is because he inherited the founding titan from Grisha. As long as he has that power, the possibility of him using that power exists.
The second reason is the information they got from Reiner and Bertholht. To their (Reiner and Bertholht) eyes, Eren was using the co-ordinates without having royal blood. The reason he could do this was because he came in contact with Dina Fritz who had turned into a pure titan, but since they didn't know that, they reported back to Marley that Eren used founding titan while not having royal blood.
This led them to believing that Eren could use the powers of founding titan.

I actually found more information about this after the question. The second is a good point, there is another point but I don't want to post it myself

Oh, there is another?

@Pablo if you know it then why not tell us in an answer?

@Pablo Yes. what other information did you get ? Is it that Marley knew this contact thing ?


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Is Dabi Endeavor's son?
There always has been a lot of speculation about Dabi being Endeavor's son. But yesterday I saw a My hero academia Youtuber who said in the last manga (#202) was strongly hinted so. What happened in the last manga? Is Dabi Endeavor's son?

 Chapter #290 of the series finally confirmed what many Dabi fans have thought all along. In front of both Enji and Shoto (Endeavor's younger son), Dabi revealed his true name, Toya Todoroki.

Todoroki-Dabi theory

There is still no confirmation, nor in my opinion enough information to jump to a definitive conclusion. However, considering the long running rumors and theories, I can think of what the YouTuber meant by a "strong hint".

I've tried to keep the spoilers for the current arc minimal in the following answer, so the actual plot of the arc has not been mentioned. It should be enough to ease your curiosity, but I can reveal more to you if you wish.

The information revealed in Chapter #202 was about:

 Endeavor's eldest son, Touya. In a flashback from Shouto's perspective, we see Endeavor claim that Touya possessed firepower greater than his, but that he inherited his mother's frail constitution. He goes on to say that Touya was almost perfect, but not enough. And that Shouto would be the one to succeed his ambitions.

As to why this might be supportive of the theories that Dabi is connected to Endeavor:

 We've seen Dabi as being capable of a lot of firepower, both during the Forest Training arc and at the end of the previous arc (Chapter #191). In addition, in the last panel of #191, Dabi remembers a hero named Snatch (whom he supposedly killed). Snatch yells at him about whether he had ever "stopped to think about how their families feel", to which Dabi comments "Haha.. I went crazy thinking about it". This could be referring to how he felt as part of Endeavor's family.


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Are Mikasa and Levi the only two Ackermans alive?
Supposedly the Ackerman were a clan, so at some point there must have been many of them, and we knew Kenny who died during the series. But what about other members?
Are Mikasa and Levi the only two Ackermans alive?

As quoted at attackontitanwiki

Only two known members are left.

It looks like only Mikasa and Levi are alive
Also, some other members are listed here


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How did Eren transform into a Titan without causing self-injury (Season 4, Ep. 5)?
So at the end of Season 4, Episode 5, we see Eren becomes a Titan while talking to Reiner. He didn't cause any self-harm, so how did he transform? Should it be assumed that they just didn't show him causing self-injury?
Any answer is appreciated :)

you see his hand is already bleeding before he shakes reiner's hand and goes boom. he was just waiting to activate his power


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Which transformation gives more power, Super Saiyan Rage or Super Saiyan Blue Evolution?
In Dragon Ball Super there is a power scale for most of the super saiyans transformations, but some of them it's unclear where they fit. For example, this is the case of Super Saiyan Rage which is clear it's stronger than Super Saiyan 2 for example, and apparently stronger than Super Saiyan Blue considering how Trunks performed against Fused Zamasu versus how Goku and Vegeta in Super Saiyan Blue did, but from there on it doesnt seem to be data which states where it fits. Is there any info in any of all the Dragon Ball sources to know this?
Which transformation gives more power, Super Saiyan Rage or Super Saiyan Blue Evolution?

That's a tough one, but as you can see in the Dragon Ball Super Card Game, Future Trunks in Super Sayan Rage mode has more power than Goku or Vegeta in Super Sayan Blue Evolution mode: http://www.dbs-cardgame.com/asia/cardlist/?search=true&category=428002&color=Blue
Also while fighting against Fused Zamasu, this state is shown to be able to power up even further, through the energy of humans across the Earth, gaining a massive boost in power. This power was able to destroy Fused Zamasu's body with ease.

The card I can see there it is Vegeta in regular super saiyan blue though, not evolution.

I'm assuming the evolved form of SSB is more powerful than normal SSB, so your question is still answered.

Normally, every transformation has ups and downs. Rage mode though strong it is not as strong as Blue as per manga. In the manga, trunks doesn't even achieve that transformation as far as I remember. If we go by anime only, then Rage mode may seem like a bit stronger than blue but its not. As rage mode is a temporary form and cannot be attained at will. However, Evolution can be used at a whim of the user. Also in Evolution form, Vegeta almost held a candle against Jiren who is much more stronger than Zamasu. I would suggest you rather read this blog https://animehunch.com/2021/01/06/dragon-ball-super-what-is-super-saiyan-blue/ where he has explained well every super saiyan blue transformation


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How Beast Titan was able to transform multiple people at once?
In season 3 episode 14 we see Beast Titan transforming himsef along with an army of Pure Titans.
As far as we know, Pure Titan can be made using Titan Spinal Fluid and Beast Titan has an ability to control those made of his Spinal Fluid.
But how an ARMY of Pure Titans appeared at once if it needs to be injected manually? I tought he had a slight, imperfect control over his Titans, but is it actualy Fouding Titan level control that allow him to transform/untransform them at will?

AFAIK, he cannot untransform a Pure Titan. No Titan Shifter can untransform a Pure Titan.

Spoilers ahead. Be warned.

He most likely used gas which has his spinal fluid.

It was revealed in Chapter 110 how Marleyan soldiers spread gas which contains Zeke's spinal fluid to Ragako village. Zeke called it a Gas Weapon. He explained that any Subjects of Ymir who will inhale the gas won't be able to move and would lose consciousness. It was then shown how all villagers transformed when he screamed. He probably placed people who inhaled this gas surrounding Shiganshina. He then screamed then transformed alongside with them.


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How large is the blast generated by the explosion of the Colossus Titan transformation?
When the Colossus Titan shifter transforms, it generates a large explosion which can be used to kill their enemies. How large is this explosion supposed to be? Is there any info about this?

It depends, at almost best attempt, it can atleast blow up a whole sea port, including many ships(much more than this likely as a plan in manga later), and in case you are anime only, in a episode where beast titan throws bertholt, and his transformation (which likely he didn't want to exhaust himself completely at first attempt) blew up a whole lot of area in shiganshina, many soldiers had died of it, even though the transformation was way up in the air. So it's to speculation, what happens iif all energy is completely exhausted in a single attempt, no such example of such till now.

@AdiG15 I think your answer is complete, why don't you send it as an answer instead of a comment

Okay; Thanks, will put in as answer with some more info, or if you plan to answer early that's good too :D

It actually varies, since bertholt had quite precise control over it.

When he transformed into the Collosal titan (partial transformation though), over the wall at Trost, his transformation only caused a wind blast who knocked some trainees over the Wall.

Then at the return at Shiganshina, he transformed mid air, with the explosion being comparable to a nuclear weapon, also releasing smoke cloud high up in the air. (But as it seems, he still could have done an EVEN MORE EXPLOSIVE, but he could fight well, and had enough mass thereafter too)

From Fandom
During the retake of Shiganshina, Bertolt releases a similar amount of energy to a small nuclear device, creating a mushroom cloud of dust and rubble, and also ravaging part of the district and killing a great number of Survey Corps members.

In control of Armin, the explosion during the transformation at the PORT was enough to blast off the naval port at Marley.

So far till now, the explosion is comparable to a small nuclear bomb, though if intended only a single transformation, more explosive transformation may take place, this is upto speculation.
NOW, A MAJOR SPOILER FROM MANGA

 To this, armin also agrees that this may be the only way to defeat eren's founding titan, if they can't come to terms with talking, and considering they also talked about different place eren maybe using the war hammer, armin should have had good estimate, how much area he can blow, which for blowing up most/all of eren's titan will be a COLLOSAL EXPLOSION.


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Is Broly Super Saiyan 4 a regular Super Saiyan 4 transformation or does it have something "Legendary" and different from the others Super Saiyan 4?
Broly in Dragon Ball Heroes turns into Super Saiyan 4, but before that he has a "legendary super saiyan" transformation others saiyans don't have, and also he has a red aura instead of yellow, though this could mean he's in the limit breaker Super Saiyan 4 form .

Is Broly Super Saiyan 4 a regular Super Saiyan 4 transformation or does it have something "Legendary" and different from the others Super Saiyan 4?

From Dragon Ball Wiki - Legendary Super Sayan 4

Broly's Super Saiyan 4 form is largely similar to Goku's Super Saiyan
4 form, although the main difference is his having a significantly
built frame and blank eyes (similar to his Legendary Super Saiyan
state). It also has a yellow aura when in use, and is one of the few
Legendary variants to not have Broly possess emerald hair.

The Legendary Super Saiyan 4 form, like Legendary Super Saiyan 3 and
Legendary Great Ape, is only seen in video games. Broly is shown
attaining this form thanks to assistance from Black Smoke Shenron, who
uses his shadows to transform Broly into a Super Saiyan 4 in the JM7
trailer for Dragon Ball Heroes, and then proceeded to fight and nearly
kill Super Saiyan 4 Goku and Vegeta, and Super Saiyan 3 Beat but was
struggling against Super Saiyan 2 Note before Super Pikkon arrived.

Broly Super Saiyan 4 is different from other Super Saiyan 4 transformations as it was attained through the negative energy from the Cracked Dragon Balls and Black Smoke Shenron.

The red aura is present at Super Sayan 4 Full Power which is more
powerful than the Super Saiyan 4 form, seemingly a combination of the
former and Legendary Super Saiyan. Broly attained this form around the
Assault on the Hell Gate Saga and used it to defeat the Time Breaker
leaders.


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What are the special advantages of a ruler-type servant over any other type of servant in Fate Apocrypha?
From Wiki - Fate/Apocrypha:

Fate/Apocrypha takes place in an alternate timeline from Fate/stay
night. In the Third Holy Grail War, Darnic Prestone Yggdmillennia
steals the Greater Grail, smuggling it to Romania. Sixty years later,
the Yggdmillennia clan declare war upon the Mage’s Association in the
Greater Grail War, pitting two teams of Servants against one another.
Jeanne d’Arc is summoned as the mediating Ruler-class in the Holy
Grail war.

Later on during the war two ruler type servants, Jeanne d'Arc and Shirou Kotomine, are revealed as the strongest servants it seems, or at least the most respected amongst their respective teams of servants. What are the specific advantages of ruler-type servants over the other servants in a Holy Grail War?

One of their primary abilities is the ability to know a Servant's True Name and all their skills. in Holy Grail Wars like the Fuyuki, Trifas and Moon Cell ones were knowing a Servants identity allows a Master a greater advantage in knowing their weaknesses, there are limits to this skill which are shown with both Jeanne and Amakusa

True Name Discernment (B Rank): When summoned as a Ruler, status information such as the true identity, Skill and Parameters is automatically revealed when she directly encounters a Servant. However Servants with hiding capacity depend on her luck level to bypass this.

Source: Jeanne d'Arc (Ruler) > Abilities > Class Skills

True Name Discernment (B Rank): As a Ruler class, he gains this skill. Status information such as the true identity, Skill and Parameters is automatically revealed when he directly encounters Servant. There are certain limits, Servants with hiding capacity such as Saber of Red's Noble Phantasm Secret of Pedigree can mask out her identity, however it depends on his luck level to bypass this.

Source: Amakusa Shirou Tokisada (Ruler) > Abilities > Class Skills
as mentioned with both Mordred's Helmet, "Secret of Pedigree" hides her identity from them and requires a Luck check which Jeanne's being Rank C and Amakusa's being Rank B. it's possible that B+ to EX might be able to negate Mordred's Nobel Phantasm however quick skimming the Grand Order Rulers none of them have True Name Discernment.
Rulers also have the God's Resolution Skill which allows them to have Command Spells. Jeanne's being Rank A allows her 2 Command Spells per Servant and can not repurpose used ones. also she can not affect Heroic Spirits if they have given up their existence as a Servant but remained in the world

When the nameless vampire previously known as Lancer of Black and Darnic Prestone Yggdmillennia abandoned his existence as a Servant, this skill was no longer able to restrain him.

Amakusa did have this skill in the past but it is unranked because he has lost it with his Command Spells being his own as being a Master and the ones that were given to him by the other Masters of Red, very likely acting in a similar manner to a supervisor from the church like Risei Kotomine
Finally Rulers also have a high Magic Resistance which is always a very desired skill in the Holy Grail Wars with normally Sabers having the highest rank. Amakusa's is at the equivalent to a string Saber's while Jeanne's is the highest rank, yet Sacraments like from the church are not affected. we can probably take Amakusa's Rank A as being the base as generally Saints are what qualify to be Rulers but Amakusa was an aberration due to Einzbern Cheating while with Jeanne it's probably boosted to EX because of who she is

In addition to the Magic Resistance of the Saber Class, she demonstrates a high anti-magic from her unwavering piety.

In addition to their class Skills, Rulers are supposed to be neutral during a conflict with Amakusa probably not being neutral due to how he was summoned as the Grail generally summons a Ruler, not a Master. they are also supposed to make sure Heroic Spirits follow the laws placed upon them. ie "the dead not leading the living"

A Ruler is also summoned to preserve the laws of Heroic Spirits to ensure they won't be violated, such as the law of "the dead not leading the living", touted as the greatest law of Heroic Spirits, and to maintain human history by preserving the illusion behind the Age of Gods so that people do not know about the truth behind it.

Source: Ruler (Second Paragraph)
while it was release much earlier, a probable reason why no Ruler is summoned to stop Gilgamesh or Angra Mainyu in Fate/Zero and Fate/Stay Night is probably due to the damage caused to the Greater Grail and the system thanks to the Einzbern summoning Angra Mainyu who contaminated the Greater Grail since the 3rd war.

i will add that the wiki lists Karl der Große as having God's Resolution and True Name Discernment however his wiki page only lists their ranks and not what they effects are and not having played Fate/Extella yet i don't have first hand knowledge what their effects are, however they are at a lower level so we can assume they are not as powerful
Also as stated by Swimsuit Martha who is a Grand Order Ruler, the Grand Order has altered the Ruler Class

“It is expected that I have it, but… seeing that it is not a Holy Grail War, what I know is that even the role of a Ruler has come to be altered in due course, do you not think so?”

this would explain why when you look at the Rulers listed as being in Fate/Grand Order none of them seem to have God's Resolution and True Name Discernment

Well, in FGO True Name Discernment would be fairly useless anyway, since almost all servants reveal their identities almost immediately, in complete defiance of the "never do that because it can reveal your weaknesses" lesson we're taught in other materials.  It's only in the semi-optional pseudo-singularities that any servant tries hiding their name and you have to advance the plot to learn it in-game.  Amakusa and Jeanne both have stun effects versus servants which seem to be the replacement for the command seals; maybe you could stretch that to them exploiting a weakness.


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Can Ghouls be damaged by fire?
The Ghoul Resistant skin allows them to not get damaged by conventional weapons such as being pierced by knives and common low calibre firearms. (A shot from a tank would pierce them)
I was wondering if the ghoul resistant skin can be burned or damaged by fire/ice/acid/electricity?
We saw that they can have allergies to things, such as metal allergies. Since their skin can only be pierced by high impact force or other kagunes. I was thinking if a ghoul could be burned alive or the skin would resist that.
I know that regeneration would keep them alive if they are damaged, but I was wondering if you had a flamethrower or an acid bottle, would that go through their skin or not.

I think there never was that kind of interaction, beside

 when Tatara and Takizawa fought in Tokyo Ghoul:Re 2nd Season episode 3, but i dont know if that counted as fire. + Takizawa is kinda sadistic so im not really sure if his screams of pain weren't just sarcastic since he follows that with: "but that felt really good"

(I would love to provide more to that scene, but im not that familiar if it is possible to tag pictures as spoilers so i hope that the episode is enough as source)


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Where does the "No highlights on the eyes" trope come from?
When a character is unconcious or possessed by some supernatural entity, it often loses their highlights in their eyes.
Here is an example from the Sailor Moon R movie.

Where does this trope originate from?

This trope is called Reflectionless Useless Eyes, and the origin can be found in its parallel/sister trope Mind Control Eyes.
Outside of films and animation, a common "symptom" of hypnotism (a mental state in which somebody is entranced, such as mind control or under a spell) is enlarged/dilated pupils. This condition would generally off an appearance of the individuals eyes being completely black. In some cases, they could also have a completely white appearance indicating their eyes-rolling to the back of their head.
Within films and animation, this is replicated for a visual benefit for the audience. This can be seen in dull-blank eyes, as in your example, or swirling spiraled  pupils.


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Is Ifrit alive?
In Episode 7, Rimuru Tempest used Predator skill to devour him. After that, he was summoned by Veldora inside the Unlimited Imprisonment (Episode 24.5).
Is he alive? If yes, can he get out with Veldora?

Yes, Ifrit is alive and can be let out by Rimuru. This becomes evident in season 2.


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How does time travelling work in attack on titan?
In the Manga,

Its shown that Eren was the one who asked his father to eat the former founding titan and give the power to Eren. How does it work ?What all can Eren do under time travelling?

No one can time travel forward or backwards in time. At least, not yet.
When Eren and Zeke were watching Grisha’s memories, they noticed that Grisha didn’t want to kill the Reiss family. Eren inherited the Attack titan from Grisha, and so he was able to transfer future memories to Grisha because every titan shifter is connected to Paths, and it’s because Grisha and Eren have the same titan that he is able to send them. He shows Grisha those memories and is able to speak to him, essentially manipulating him to do the dirty work of killing the Reiss family.
However, I do have a theory that time travel is possible. When Eren wakes up from his dream in the first chapter, he tell Mikasa that her hair became longer. He is crying but never tells why he is. I believe that when Eren was able to fully use the founding titan, he either sent his memories to past Eren (which is unlikely because he doesn’t have the Attack titan, unless Eren was able to send them to past Eren because he is an Eldian), or he was reborn into a new timeline where he wakes up from dreaming all of his memories, sort of like Bunny Girl Senpai, and redoes everything because he must have failed at something to make him restart. This explains why Eren says she has longer hair, Mikasa has short hair in the recent manga chapters.

mindblowing theory :O

yes and I even think that something similar happens with Falco as well. In the first episode of season 4 even he talks about using odm maneuver gears and killing titans. Maybe something  happens to him later on similar to what you told happens with Eren.


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What was it that Ichimaru Gin wanted to avenge?
I just finished watching Bleach. I wonder what was it about Matsumoto Rangiku that Ichimaru Gin wanted to avenge/protect?
Also, what would he have been thinking after he successfully extracted the Hogyoku from Aizen's body?

Gin found a collapsed Rangiku. They began living together in Rukongai. One night Gin spotted Aizen and three other Shinigami in a forest. He watches Aizen receive a pink ball of energy from one of the Shinigami. Gin had witnessed these three Shinigami leaving the area where he found Rangiku. It's implied that they stole the pink spiritual energy from her. For this reason, Gin vows to get revenge on Aizen.
As for what he was thinking after extracting the Hogyoku, I can only assume that he believed he was successful in killing Aizen and avenging Rangiku.
Source: https://bleach.fandom.com/wiki/Gin_Ichimaru#Fake_Karakura_Town_arc


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Did Chopper mishandle the candy incident?
During the Punk Hazard arc, some giant children are found, and it comes to light that they're actually research subjects who're given doses on a dangerous and addictive drug. When Chopper sees their violent withdrawal symptoms, he comes up with a plan that doesn't seem medically sound (to me at least, with my very limited knowledge of medicine). Namely, he uses sedatives. First Usopp's sleep gas, and then an injection of his own making. My understanding is that withdrawal can be fatal under some circumstances, so Chopper's adamant decision that they absolutely cannot give the children any more of the drug when they're suffering violent withdrawal seems very misguided. Staving off the withdrawal symptoms until they find a permanent solution seems like a viable solution to me. And I'm not sure how effective sedation would be. Was there a better way? Or is this all medically sound?
For an answer, I'd like either a compilation of medical mistakes made in the treatment of the children, or some proof that this actually was medically sound.

Well, if there was poison or something similar (in OP world) in the drug, I would also risk it and choose not to give it anymore and handle the withdrawl. It also depends on person's character and Chopper would do anything to save anyone around him.

Checking the One Piece wiki, there seems to be some similarities between NHC10 and stimulant drugs like methanphetamines.
According to the "Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings." published by the World Health Organization, the basis for treatment of withdrawal syndrome in stimulants addiction is symptom-based.
The usual symptons are: agitation, irritability, depression, increased apetite and muscle aches, in the more severe cases they can develop psychosis. These seem compatible with the symptoms presented by the children.
In cases of severe agitation, much like the children presented, it may be necessary to sedate the patients when other behavioural management strategies prove unsuccessful.
The rest of the treatment relies on hydration and multivitamin supplements along with psychological therapy.
So, at least going by our current standards IRL, Chopper seems to have acted in good faith through proper medical treatment.
Source: Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings

Good answer. Since it seems methamphetamine is the closest real-world equivalent, this seems relevant : " Unlike withdrawal from other drugs of abuse, like heroin, prescription painkillers, and sedatives, methamphetamine withdrawal is not typically distressing or life-threatening. Withdrawal symptoms may include anxiety, depression, fatigue, meth cravings, and in rare cases, psychosis." https://www.rehabs.com/treatment/methamphetamine/

And this one: "Withdrawal from crystal meth is most likely not potentially physically damaging unless the individual becomes extremely emotionally unstable and engages in self-harm." https://americanaddictioncenters.org/meth-treatment/withdrawal

You can put those in your answer if you want. Also, according to the trivia on https://onepiece.fandom.com/wiki/NHC10 NHC10 are the letters of the chemical formula for methamphetamine backwards. That also seems noteworthy.


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What is the hand gesture Itachi does when calling Sasuke to him?
I've always found this gesture curious, because it looked like the "shooing away" gesture to me, but Sasuke reacts as though he's being summoned. So I'm interested to know if this gesture is part of Japanese culture and would be generally understood.

I'm interested in two things here: Which direction is Itachi flicking his fingers? Technically speaking, he does both, but the way I understand the "shooing away" gesture is that you're flicking away, indicating to the other person to go away, so it could be a matter of how the gesture is understood. And I'd like to know how widely used this is in Japanese culture (or whether it's just an Itachi thing), and whether the Japanese would recognize this gesture as "shooing away" at all. Just an explanation for the gesture, basically.

Itachi is flicking his fingers towards himself, not outwards (which would be shooing away someone), which was why Sasuke came over to him. It's called the Beckoning sign and it varies by country.
It's also not just an Itachi thing - it's a common gesture in Japan to call someone over to you. I believe it's a different gesture compared to Western countries hence the confusion, which is understandable since I also thought it was how the Western countries do it. Here's a video demonstrating the gesture: https://youtu.be/iBcQFBuj2Os
It's interesting to note that the 'come here' gestures of some English-speaking countries are considered rude in some Eastern countries and is even a ground for arrest in one country.
Some resources about hand gestures:

https://englishlive.ef.com/blog/english-in-the-real-world/hand-gestures/
https://www.tofugu.com/japan/japanese-body-language/

I’m not sure about other countries, but at least in the USA, we do the same hand gesture except for our hands are pointed upwards rather than downwards.

@Wondercricket Interesting. In ours, we do a gesture similar to what the Japanese does, sometimes with a slightly downward arm movement while flicking the fingers when it's something urgent.


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How did they save Penny?
Near the end of season eight, Penny is infected by a virus and subsequently saved through the intervention of the spirit of the Staff of Creation. The only thing is, I didn't quite understand what Ruby and the others told the spirit to do. They told him to create a new version of Penny, but there was something in there about how the spirit couldn't destroy her soul and thus this little nuance would force him to save her. And I think Ruby said something about copying the virus as well. It was a bit confusing. I'm not entirely sure whether Penny's soul stayed in her old body and the virus was put in the new one, or if Penny's soul went into her new body and the virus was put in the new one.
What happened?

As these things sometimes go, the answer came to me after some thought. It took a while for some of the details to sink in. I believe I can explain what happened with some clarity now.
First, the order to the spirit of the Staff of Creation was to create a new version of Penny, exactly the same at the current one, with the virus still in it, out of the same parts as the current one. This would cause the current Penny to be destroyed. However, here comes the loophole: the Staff of Creation is not allowed to destroy (or create) life. Penny has a soul, as evidenced by her use of aura, therefore he cannot follow this order. His only choice is to give Penny a flesh-and-blood body.
This explanation meshes well with some details that initially confused me. For instance, Penny starts hugging everyone immediately after and marvels at how warm hugs are. And in the final episode of the season, she has blood.
The wiki seems to confirm my suspicions:

In "Creation", she was transformed into a Human by Ambrosius when he
created an exact replica of her using her robotic parts.

Disclaimer: I did this answer from memory, rather than consorting the episodes again. But I think my memory is accurate in this case. Hopefully. Feel free to correct me if I got any of the details wrong.


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Did Midoriya have some level of superhuman strenght before getting One for All?
In the first season of the anime, after training with All Might, Midoriya was able to carry him in his back when All Might weights 255 kgs (562 lbs). This is insanely strong for a 14 years old. How is this possible? Did Midoriya have some level of superhuman strenght before getting One for All?

In the same line of thoughts, nobody is naturally born with green hair, so does that mean that Midoriya is part alien?

As far as we know, no. If anything, it's even the opposite. As is noted in the My Hero Academia: Ultra Archive: The Official Character Guide where Deku's strength is noted as 1/5(E)
All though this may be intentional, considering their world does not directly seem to conform to the rules as set in the real world. It could also be an oversight, as Deku was originally intended to be an adult, as mentioned in the trivia section of the fandom wiki. For whom the act of carrying 255kg (562 lbs) could be more realistic. Given that it would still be quite a feat to achieve.

It might be a plot hole indeed since in the quirk apprehension test his measured force for griping was 56 kgs.

He may not have Super-Human strength, but because of him original being Quirkless, he might have trained at the gyms harder than everyone else around him.


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What was Armins goal with Annie in Stohess district?
In episode 23 in season 1, I was confused on what Armins goal with asking help from Annie was. Was it to figure out if Annie was the FT? Or was it just to help Eren escape, and figuring if Annie was the FT could possibly be revealed along the way. If it's the first one, why did Armin take Annie underground? Also was there any significance as to why there were no civilians around?

This is explained in the next episode:

Was it to figure out if Annie was the FT?

As shown in the previous episodes, it was revealed that Armin already had a suspicion that Annie was the Female Titan, and revealed his theory to the rest of the company. Shortly after this, they had come up with a plan to trap Annie - hence them going to the underground tunnel.

If it's the first one, why did Armin take Annie underground?

This was a ruse to trap her in close quarters. With being in a confined placed, Annie wouldn't have been able to transform into her titan form without risking her own life in the process. As a warrior, her duty was to uphold and complete the mission at hand.

Also was there any significance as to why there were no civilians around?

This was a pre-determined route Armin and company had designed in their efforts to trap Annie. At one point, you see other scouts hiding behind counters, in homes, barrels, etc.... So  no civilians were present because they were likely cleared out ahead of time to prevent casualties in the event something went wrong.


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Who created the iconic character designs for the KyoAni look of K-On & Tamako Market?
I'm very enamored with the KyoAni look for the character designs for these two shows that are easily distinguished by the round eyes and mouth. I want to find out more information on the artist responsible for this design. I worry that they may have perished in the recent Kyoto Animation Studio tragedy. Surely people who worked on these works did, but I don't know how to find out because I currently am only in the beginning stages of learning Japanese. I would very much appreciate any information anyone could give me in this area.
Thanks!

Nowadays, seems like that style has just been hardwired into KyoAni since the character designer for K-On! and Tamako Market, Horiguchi Yukiko, has already left the studio.
Going through a brief history of KyoAni's character designers:
DISCLAIMER: I'll be skipping the Munto movie series and the anime it spawned as it's pretty much the same deal as AIR in terms of staff. Also, many more people than those I'll be mentioning have formed part of the animation department of KyoAni, but I'll be focusing on those that got at any point in time credited as Character Designer or Chief Animation Director.
Their first big solo anime seems to be Full Metal Panic? Fumoffu (2003), inheriting the franchise from GONZO, bringing back the first season Character Designer and Animation Director Horiuchi Osamu. He'd reprise these roles for FMP Season 2 in 2005, but that's the last of him with KyoAni. He's just here for historic reference, I don't think he had that much influence in the KyoAni style.
In between the FMP seasons, they made AIR (2005), an adaptation of a KEY Visual Novel (get used to this), by the hand of Character Designer and Chief Animation Director Aratani Tomoe. Of note here are Ikeda Kazumi and Ikeda Shoko taking over as Animation Directors for certain episodes; and also being Key Animators alongside Nishiya Futoshi and Horiguchi Yukiko. You could call this the early stage of KyoAni's style.
In comes 2006 with The Melancholy of Suzumiya Haruhi, now with Ikeda Shoko as Character Designer and Animation Director. This time, Nishiya and Horiguchi got to direct some episodes themselves along Aratani and Ikeda Kazumi, they all worked in Key Animation as well.
Later that year, they all worked on Kanon (2006), a new adaptation of yet another Key VN, this time with Ikeda Kazumi as Character Designer and Chief Animation Director (CAD). The rest of the team mentioned earlier also worked as individual episodes Animation Directors and on Key Animation.
Spring 2007 brings us our star. Horiguchi Yukiko gets to be Character Designer and CAD for Lucky Star. Same as before, we get all our familiar faces working on Animation Direction or Key Animation, with a new addition: Kadowaki Miku on Key Animation. Lucky Star (and the first season of Haruhi to some extent) seems to me to be the middle point between the KEY adaptation style and the later KyoAni style, I believe working on this, adapting the 4-koma chibi style of the manga, helped cement Horiguchi's style for later works.
Later that year, Ikeda Kazumi is back helming Clannad, again with a KEY adaptation. The regular team is at it again, but this is the second to last work with KyoAni for Aratani, and since her last work was the finale for the Munto series which I said I won't be expanding upon, this is the last we'll see of her in this overview. I believe she had an important role in nurturing the talents in KyoAni through her work in AIR and Munto. Clannad After Story in 2008 continued with the same staff sans Aratani and is to this day the most beautifully crafted of any KEY VN adaptation ever made.
2009 was a big year for KyoAni. First with 2 Haruhi ONA series with Nishiya at the helm, followed by K-On! with designs by Horiguchi Yukiko (and Kadowaki gets a role as Assistant Animation Director for ep 12) with her style now in its full glory, and Haruhi Season 2 with Ikeda back as Character Designer but with Nishiya as CAD (and Kadowaki as a full-on Animation Director herself for episodes 7 and 13). This is the year that pretty much set in stone the artstyle that you're looking for. It can be clearly seen how Horiguchi's style had permeated into the rest of the team with Haruhi S2, where you could see in some episodes more similarities between it and K-On! than with the first season, same deal with the Disappearance of Haruhi Suzumiya movie in 2010 (Also, K-On! S2 also aired on 2010).
In 2011, Nishiya is back as Character Designer and CAD for Nichijou, and then back to Horiguchi with the K-On! Movie. The Ikeda siblings seemingly left temporarily, as they had no participation in the K-On! Movie.
Now, it's 2012, we start with Hyouka, with Nishiya back at the head, with a more... let's say elegant (?) style, while still resembling Horiguchi's, this is what will become what I like to call late KyoAni style. Later that year, Ikeda Kazumi is back leading Chuu2Koi, and here is where you can see how much of an impact Horiguchi had made. Despite her not having any role as Key Animator, nor directing animation in any episodes, you can clearly see that her style from K-On! is all over the place.
Horiguchi is finally back in 2013 with Tamako Market, her last TV anime with KyoAni. That same year, Free (Nishiya) and Kyoukai no Kanata (Kadowaki's debut as Character Designer and CAD, and also Takase Akiko joined as Key Animator) further develop the late KyoAni style into what we see nowadays. Chuu2Koi S2 brings back the softer style even without Horiguchi, and the last we see of this pure Horiguchi style from KyoAni will be 2014's Tamako Love Story.
After her leaving KyoAni, seems like she's been working on the mixed media idol project "22/7" which had an anime last year (the idol project seems to have started on 2016 tho), and the Graphinica movie "Hello World" from 2019. She was also the illustrator for the Kokoro Connect light novels. Those would be closest chances if you want more of her undiluted style.
KyoAni on the other hand went on to develop its style with Amagi Brilliant Park in 2014 (Kadowaki). The Ikeda siblings seem to be the ones that were most influenced by Horiguchi, Hibike! Euphonium in 2015 (Ikeda Shoko's comeback) and Musaigen Phantom World in 2016 (Ikeda Kazumi) have a much closer style to Tamako Market than other later works of KyoAni. But Nishiya clears the way to the late style with 2016's masterpiece Koe no Katachi and culminating with Takase Akiko's debut as Character Designer in 2018's Violet Evergarden (in between these 2 it was mostly sequels and spin-offs from Free and Euphonium).
What was the point of this overly long explanation instead of just saying "Horiguchi Yukiko"? Because I believe that the style in KyoAni's work is not simply one person's work. Even though the biggest influence comes from Horiguchi Yukiko, the current state of the style was made possible through KyoAni's own work ethos and a lot of work from Nishiya and Kadowaki who developed the style after Horiguchi's departure. Them alternating character designers and animation directors helped nurture new talent and create a style of their own that wasn't just a single person's but the studio's as a whole.
And about the arson incident, unfortunately it took the live of Nishiya Futoshi, may he rest in peace.

I honestly didn't know if I could receive an answer with this much insight and detail. I'm so glad that you didn't just respond "Horiguchi Yukiko". After asking this question I later went to the KyoAni site, and used google translate to see who was in charge of character design for those two works. But I still wouldn't have learned everything you mentioned. Thank you!

This is a fantastic answer, I would only add that Horiguchi counts as a long time friend Yamada Naoko, who was series director on both K-on! and Tamako Market. Yamada has stated on many occasions that Horiguchi was one of her great influences (alongside the late Takemoto Yasuhiro, series director of Lucky Star and Dragon Maid). If you want a little more about Horiguchi, Yamada and Tamako Market, here is a good, well-translated interview with the two: TAMAKO MEMORY’S NOTE INTERVIEW – YUKIKO HORIGUCHI.

And thank you for this interview as well. It means a lot to me. Thank you both!

@RobR if I had added stuff about directors, this would have more than doubled, they definitely also played a major role in this, but this was already overly long as it was. May Takemoto rest in peace as well, his work will always be remembered.

@Ashir0gi_Sensei I'm glad you found my long rant useful. I just really love KyoAni and wanted to do them at least a bit of justice.


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Why does 定命 have the furigana さだめ in the Oreimo: Kuroneko manga?
I was trying to read a raw copy of the Ore no Kouhai ga Konnani Kawaii Wake ga Nai and on the page shown below, there's this kanji, 定命:

As seen, it has the furigana さだめ. However, when I tried looking it up on dictionaries, I only found two possible readings for said kanji: じょうみょう and ていめい. I could not find anything with regards to it being read as さだめ. So, why is the furigana different? Does it convey the same meaning despite this difference in its reading?

As described in this answer on the Japanese Language SE, there is a phenomenon known as "ateji" where the kanji and associated ruby* are not 100% aligned, either in reading or in meaning. This particular style is especially used in light novels and manga as a way to provide a double message - the ruby is the actual word spoken, but the kanji gives a clearer understanding of the desired meaning.
*A Ruby character is any smaller writing placed above the main writing, technically it's only furigana if it actually provides a guide to the reading of the kanji but that's a distinction that is frequently ignored.

Oh, I see. Based on that link, there are two types of ateji. So, in this case, from what I understand, it's the second type of ateji, which would mean that despite the difference in reading, the kanji still means destiny or faith. Is that right?

Yes. In this case, you get the meaning from the kanji, although "sadame" (using the same first character) already partially has that meaning too.


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Can I have a license for cloth production with anime images?
I need to know if I can put an anime character, for example, Naruto or someone else, you name it, on clothes which I will sell afterwards. Can I do it without any permission of the creators of the anime (guess not but still)? And if I can't how can I get lawful permission for that. I see many things with characters on them and I'm wondering how to not break the copyrights because I want everything to be legal.

Does this answer perhaps answer your question?

One of the ways to do it will be by asking the owner of the copyright of the anime Boruto: Naruto Next Generations which is “d-rights Inc”. You can find that by searching up on google, “Who owns the copyright of Boruto: Naruto Next Generations”. You can search up other anime copyright owners to ask them, but take note that sometimes when you want to use someone’s work they may ask you for money like for some google images you need to buy them in order to use them for money.


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In Reincarnated as a Slime, when Myulan is exploring Rimiru city, why did a dragonewt stop to stare at her?
https://www.youtube.com/watch?v=tYAsqsrvY2s&t=22s
Did he figure out Myulan was a Majin or something of that sort? This is season two close to the midway point.

Well about that those races of dragonewt's can sense powers if they focused on they're surroundings so he just found that there was a majin and was thinking maybe that she might be related to the other majin's in the vincity and he saw her confused but not as a threat that would destroy the magic in the surrounding.
For example take the dragonewts leader's sister she wanted to join as an assassin with a majin.
So they might be used to they're vibe and saw her with the same vibe.

"those races of dragonewt's can sense powers" - Is that based on the novel or fantasy in general?

@DavidHobs based on the novel actually they have these extra powers which is link mentioned here you can refer this


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Why does "Tornado of Terror" have so much power reserved in her storage?
Why does Tatsumaki have so much power reserve than any other psychics around her combined?

 In the manga series she is seen to be concentrating more and more as people of the Hero Association leave the building and finally blasts off with her power towering more than Geryuganshoop and Orochi combined.

I just want to know how is it even possible?

The origins of her powers are presently unknown, so in that sense that's all that can be said about your question.  She's known to have had them since a young age, if not since birth.  Her sister also has exceptional power, but Tatsumaki's is just so ridiculous that she puts it to shame.  So possibly she is just the winner of the psychic genetic lottery.  We do know there is some organization that was trying to engineer and refine psychics, ultimately including Tatsumaki, but to date Tatsumaki's connections to them are not known to predate her childhood.
As a storytelling matter, the entire character and power level of Orochi (and Orochi-Psykos) were specifically designed to challenge Tatsumaki.  In the original webcomic, Tatsumaki is never really challenged at her full power during the MA arc, and she still pulls the entire base up from underground with barely any effort and tries to take everyone on by herself.  Instead she gets hit with a cleverly orchestrated sneak attack that gives her a concussion, which significantly dampens her power.  At the very least, Tatsumaki herself blames everything on it, rather than anyone actually having adequate power to oppose her.
For the manga version, Murata and One decided that Tatsumaki needed a more proper challenge and a more breathtaking display of her power.  Hence the Orochi-Psykos fight and all the ridiculous stuff Tatsumaki does during it.  This also serves to help them introduce a number of elements about Tatsumaki's backstory and motivations earlier than they are given in the webcomic. It also elevates the concept of a "God" level threat from unrealistic bluster and exaggeration to plausible.  As a matter of storytelling tautology, a "God" level threat must necessitate the world be able to sustain and produce heroes of great power to oppose it, and so a Tatsumaki like entity is an inevitability.
Back to the in-story reasons, the best we can do is conjecture, as there are quite a lot of questions about Blast, the nature and origins of his power, and what exactly these cubes are he's collected and who the "him" he says it connects to actually is.  These mysteries seem to be going down into the very roots of the nature of this world, and may be near cosmic in profundity (and so make the idea of a "God" level threat potentially more than just bluster and exaggeration), so any further revelations about them may similarly reveal the reason that certain heroes, Tatsumaki and Blast in particular, exist and have so much power.


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My Teen Romantic Comedy: What did Yukinoshita mean "this will be the last one then you can end it."?
In season 3 ep 5 of My Teen Romantic Comedy, we find after the ending that yukinoshita and Iroha are talking in the student council office and after a little conversing yukonishita states
"It's alright, this will be the last one, then you can end it" (dubbed)
"It's alright though, this will be the last one. I can truly end things with this" (subbed)

It could be explained in many different ways, but I'm asking this community because I haven't seen anyone ask this question on any forum for me to have different idea pools to pull from.
so please help me!

She says it because she believes that she was depending on hikigaya in every difficult situation. she knew that hikigaya was doing this (another prom) for her sake and to solve the problem and she thought she will rely on him for the last time as after the prom they will end the club which was their only way of communicating and she will go alone again and wouldn't have to rely on him again


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Should I read manga of famous anime or watch it?
Is manga necessary to enjoy the anime as I have never read a manga in my life and until now for 2 years, I am watching anime only.

If you've been watching anime-only for years now, I suggest that you look at the manga.
In the title, you refer to the anime XYZ as famous, and as most anime are adaptations of the manga, if they have reached fame, the manga version is most likely going to be just as good. For someone who has been looking at Japanese art for years now, yet only anime-only, I suggest that you read the manga, simply to try out new things. This answer is purely on my experience with Japanese publishing (e.g. manga or anime), and all the good anime I watch have manga just as good. So I'd suggest if you've been watching a famous anime, you check out the manga version as well.
This is just based off my experience, but if you wanna ask me, you should read the manga of anime XYZ as well.


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Does using Izanagi require the Mangekyo Sharingan?
Does using Izanagi require the Mangekyo Sharingan? I'm asking this question because on other questions, people are saying that the Izanagi and Izanami does not require the Mangekyo Sharingan, but rather, Senju and Uchiha DNA, plus a Sharingan. However, it is seen that many people used Izanagi without Senju and Uchiha DNA, as well as no Mangekyo Sharingan, but,

Black Zetsu's statement contradicts that entire argument.
So does using Izanagi really require a Mangekyo Sharingan? Or was this just a mistake?

P.S, that red circle is my mouse, I put it there to highlight the focus panel.

NO, just like what you said, they only need a Senju DNA and a Uchiha DNA, plus a Sharingan which means genetic traits of the Sage of the Six Paths. The Uchiha, descended from the Sage, are able to perform Izanagi with their Sharingan.
You could check HERE about Izanagi.
For Madara case, his Sharingan already upgraded to another level. So he have to use his MS(Mangekyo Sharingan) for the activation. But still, MS is from Sharingan. I see no error here.
However, could you list out who used Izanagi without about these condition?

However, it is seen that many people used Izanagi without Senju and Uchiha DNA, as well as no Mangekyo Sharingan

Itachi used Izanami without Senju and Uchiha DNA. Danzo used Izanagi with the Sharingan in his arms that were in base form. But I don't see why Madara MUST use Izanagi with MS when he's still able to switch back to base Sharingan.

Itachi basically is an Uchiha, so he has the Uchiha DNA.
Danzo used Izanagi with help of the stolen sharingan and his arm(which is contain Hashirama cell also have senju DNA.)

As for why madara must use izanagi with MS when he's still able to switch back to base sharingan more like do you prefer drinking a hot water or a warm water. MS vs sharingan both is also sharingan. when you fullfil the requirement you can activate it.

Whoops, sorry, I meant Itachi used Izanami without SENJU DNA. Idek why i typed Uchiha


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What's the destructive power of the Rasengan about?
When you get hit by the Chidori, one of the damages you get is you get electrified since it's made of electricity.
What about the Rasengan? Since the Rasengan isnt made of electricity, what's the damage it's supposed to make? Does it burn? Is it sharp and by rotating you get cut? I discount that the damage comes from the impact, because since it isnt thrown many times and it isnt propelled, the damage and inertia of the Rasengan would be similar to a punch, and it wouldnt make sense to create a technique that does the same damage than a punch.
What's the destructive power of the Rasengan about?

Well, Rasengan being an incomplete jutsu, had no elemental chakra nature until amplified by Naruto Uzumaki.
As you've said, Chidori being of Raiton (Lightning Release) electrecutes the user upon hitting them. If hit with a Fire-Style jutsu, you'd burn. The damage received goes along with the elemental chakra nature the jutsu is of. But as I've already said, Rasengan is an incomplete jutsu and had no chakra nature, simply a spiral ball of chakra.
But because Rasengan is chakra compressed in a ball, spinning and/or rotating at incredibly high speeds, upon being hit with it, a wound that is sprial appears wherever the enemy was hit. This was shown when Naruto hit Kabuto with a Rasengan. On other cases, the enemy is sent flying.

when naruto uses his wind style rasen-shuriken Tsunade described it as once it hits something it cannot slice it produces a vortex of wind in the immediate area creating countless microscopic wind blades, so many that even the Sharingan can't count them all. The wind blades pierce every cell in the body, disconnecting them from the Chakra circulatory system and so preventing them from providing their physical energy to the chakra-creation process. Because of this, the target loses their ability to create and mould chakra, damage which cannot be healed by medical ninjutsu.Tsunade likens the damage to poison, and warns that if the damage is great enough, those affected by it won't be able to use jutsu again.


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What is happening to Nasa here when Tsukasa does something adorable?
In Episode 2 of Tonikaku Kawaii (Fly Me to the Moon), there are a couple of instances when the lead male character Yuzaki Nasa is overwhelmed by something unexpected and adorable that his wife Tsukasa does or says. This is shown visually by Nasa taking a longer than usual pause before responding, but then instead of responding he suffers some reaction that causes him to cough violently, I think? The visual shows some white froth spraying from his mouth, but his back is turned to the camera, so I'm not entirely certain that it is a cough. Both times, Tsukasa is taken aback by his reaction and asks him in a concerned manner whether he is feeling alright.

These events are clearly played for a gag, but I think I'm missing some context behind them. I have seen anime nosebleeds, and their meaning has been discussed on this site before: Does the "bloody nose" trope necessarily imply a sexual situation?. This case does not seem to be a nosebleed, though. The anime has not shied away from depicting fountains of blood (for comedic purposes, of course) in Episode 1, so I'm sure they would have coloured the expulsion red if that was intended.

What exactly is happening to Nasa in these two instances?

Looks like a trope of Spit Take? (Warning: TV Tropes link)

As Aki Tanaka has said in the comments, this is most likely the Spit Take trope.

A Reaction Shot to an unexpected event that involves spraying food or, more commonly, a drink from a character's mouth. ... A common Lampshade Hanging for this trope is when a character pauses to take a drink just so he has something to spit out in reaction.
(emphasis mine)

This trope is also used for comedic purposes, as seen in the image of Ryuuji Takasu above. This trope is also used when someone is surprised or excited, similar to the nose bleed trope that is commonly found within anime and manga. You've said that Nasa Yuzaki reacts that way whenever Tsukasa does something he sees as cute. It is possible that this spit take trope is being applied the same way a nose bleed is.
Source


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Why does the Blue Sonnet soundtrack predate the anime by seven years?
The anime Akai Kiba: Blue Sonnet debuted in 1989. The soundtrack Rock Symphony BLUE SONNET was published in 1982 [1]. I understand that the manga was published starting in 1981, but Manga usually do not get soundtracks.
Why does the soundtrack predate the anime by so many years? Is it even related to the anime?
[1] https://vgmdb.net/album/48805

Because Rock Symphony BLUE SONNET is actually an image album, not a soundtrack album. They are not related to the OVA.
The Japanese Wikipedia categorized it as an image album.

Image Album

Rock Symphony BLUE SONNET (1982)
Rock Symphony BLUE SONNET II
BLUE SONNET III Ballade
BLUE SONNET IV DESERT CITY

According to a Japanese blog article by joelover, for image albums, quoting a book by Joe Hisashi,

The image album precedes the soundtrack. The clues are the illustrations and words that convey the image of the work. The image album is created based on these images.
(Quoted from I am - Faraway Music Road - by Joe Hisaishi, 1992, p. 37)

Compared to the soundtrack,

A soundtrack often refers to the actual music used in a play. Recently, the term OST (Original Sound Track) is also used to indicate that it is the music accompanying a play.

So, Rock Symphony BLUE SONNET and its subsequent image albums are original audio works made specifically to capture the image of the world of Blue Sonnet series.
In conclusion, the OVA was made to adapt the manga series, but the image albums were made to expand the story instead. They are not related to each other, both production-wise and purpose-wise.

For direct comparison, taken from Joe Hisashi's own works for Ghibli production, Princess Mononoke has both image album and soundtrack album:

Princess Mononoke Image Album
Princess Mononoke Soundtrack

See also:

Wikipedia - Image song