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What would happen if you caught a PokeBall with another PokeBall?
Consider the following scenario: A trainer is trying to catch a rare or strong Pokemon, and figures that catching it in a PokeBall will have a low likelihood of actually catching and containing it.
What would happen if, after the trainer threw the first PokeBall and before the wild Pokemon breaks free, the trainer hit the occupied PokeBall with a second PokeBall? Would the both the original PokeBall and the wild Pokemon be "caught" by the second PokeBall? Would the wild Pokemon just be transferred from the first PokeBall to the second PokeBall? Would this double the likelihood that the Pokemon will be caught, due to the fact that it has to break out of two balls instead of one?
If the PokeBalls can be "layered," and the probability that you catch a Pokemon increases with how many PokeBalls you can layer on it, could you not just keep layering PokeBalls until you reach the strength of a Great or Ultra Ball?
We already know that inanimate objects and things other than Pokemon can be "caught" by PokeBalls, as evidenced by this question.

"We already know that inanimate objects and things other than Pokemon can be "caught" by PokeBalls" .... well the link you provide for this states it is not known, but evidence is it isn't possible. So a follow up question presuming something wrong, appears flawed to me...

And then you have the issue of having to yell "I choose you Pikachu" 16 times as nested Pokeballs continue to anticlimactically roll out of your thrown Pokeball while your rival Gary laughs at you unremorsefully.

@Zaibis From the first answer of the linked question: "It can happen, that there are different things than a Pokémon in it, like when Ash found a riceball in his Pokéball." I know that isn't totally conclusive, but it does provide evidence of the phenomenon occurring, which is enough basis to ask follow up questions

Whoa, maybe this question is more appropriate for the Philosophy site.

If you can catch the PokeBall while it is attempting capture, what's to stop other trainers from stealing your captures?  It's still technically a wild Pokemon until the stars shoot out.

Yo dawg, I herd you like pokeballz...

@ArtGT Source? Any other thoughts? You need to back up your argument with something...

@ThePickleTickler Also some support as to the possibility that a PokeBall could catch another PokeBall is that in the games you often will find items (ex. potions, full heals, evolution stones, etc.) laying on the ground in what appear to be basic PokeBalls.

While it's not an ordinary Pokéball, the Mewtwo ball is capable of capturing another Pokéball inside it.

This is demonstrated in the first Pokemon movie and quoted in the synopsis section of the movie's wiki page. A gif of the event is below too:

"Ash tries returning Bulbasaur and Squirtle (who have been fighting the balls bravely), but it's no use. Two of Mewtwo's Poké Balls fly over and capture Bulbasaur and Squirtle's Poké Balls."

Granted, this is a special kind of ball developed by Mewtwo, so I can't say for sure in this answer whether a standard Pokéball would behave similarly.
Additionally, the catch rate for the Mewtwo ball is listed as 100% on the wiki page. Therefore it's impossible to say whether it would increase the catch chance of a wild pokémon through stacking, as it's a guaranteed capture with just one.

Great, you mentioned the perfect example for the question( which i was presuming to be a 'confusion')

I love it when I read a question and think "this cannot possibly have any meaningful answer" and then I scroll down to find the meaningful answer

Thanks to @Ikaros for his help in sourcing a gif solution!

You can make a Pokemon hold a Pokeball in the games - which then goes inside its Pokeball! But cannot hold a Pokemon at the same time; that would be like trying to compress an already compressed file.
Obviously there are differences in the universes between games and anime, but this also appears to correlate to the other answers.

"that would be like trying to compress an already compressed file." I feel like thats how MissingoNo happens

I don't think it works like that at all. The best thing I can think of is consecutively spamming pokeballs at a pokemon as soon as they break out, so they have to struggle to break free from each one, losing considerable amounts of strength, and eventually getting caught.
The whole catching and holding pokemon deal is probably based on electronic concepts like data storage (transferring pokemon to Bill's PC supports that idea). So catching a pokemon could be analogous to throwing memory cards at them (or usb flash drives or SD cards). Can't really put a memory card inside another memory card (unless it's a drive image file like iso/img, but that sounds overcomplicated for the pokemon universe).

It might not be too overcomplicated, considering we're talking about putting PokeBalls in PokeBalls, which, in my opinion, is a complicated question

Well, I've never heard this idea before, so I suppose it is overcomplicated. Haven't watched digimon, but maybe they have some interesting twists on holding the "mons".

Perhaps we could dub this process PokeCeption, or Metaballs?

Inception (as defined in the movie) is the process of planting an idea deeply in one's subconsciousness, making the target think they thought of it themselves. So you could call it "a ball within a ball".

Well the textbook definition of inception is a start or beginning, but I was more referencing off common 'ception jokes with PokeCeption

I got that, and what I meant was this.

Well done, I'm impressed you found a meme that mirrors our coversation almost exactly

What if I told you my replies were based on this much older meme ;)

@Hakase Digimon aren't captured like Pokemon in the show; they live in a parallel world

I believe Pokéballs are a technology which only works with Pokémon (except for the Mewtwo balls), alone the prefix of the ball "Poké" tells a lot.
You don't seem to be able to catch humans with Pokéballs, that automatically excludes all living entities which are not Pokémon. If you miss and hit a tree with the ball, the tree won't get caught either. Therefore I think Pokéballs are only capable of catching Pokémon and no other matter in the universe.

See the first answer of the linked question, or see my comment to my original question

"You don't seem to be able to catch humans with Pokéballs, that automatically excludes all living entities which are not Pokémon." => Well, actually it automatically excludes only the humans you tried to catch. At most we can make some reasonable assumptions and extend it to theorize that it automatically excludes all humans. But that alone isn't enough to automatically exclude everything that isn't a Pokémon.


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Was Picollo/Kami a special case of Namekian Fusion or this could be done by anyone?
Some time ago I asked this. Potara fusion limit
In DBZ, we see Picollo fuse with Nail and exponentially increased his power. Then again he fused with Kami to further enhance this.
Was only Picollo/Kami able to do this type of fusion? I mean if you're on the verge of Genocide, you'd think some of the warriors may try fusing.
So was this due to knowledge (Nail new from the old Namek, Kami cos he divided his body) or physical limit of Namekians.
Associated, how many times could this be done?

Ankit is actually incorrect about this. The fusion between Kami and Piccolo was indeed special. Nail clarifies that Namekian fusion is only possible between two Warrior Namekians when he says he's the only Warrior Namekian on Namek apart from Piccolo.
Kami is of the Dragon Scion Namekians, the ones that can creat dragon balls and are generally weaker than their warrior type counterparts. The fusion between Kami and Piccolo is a special one because they were originally one Namekian. Thus allowing them to fuse.
The normal Namekian fusion can be done for as many Warrior Namekians there are. But the manga establishes that Nail was the only Warrior type on Namek. Probably because Guru worried about the preservation of his race so he mostly made Dragon types as they are the only type that can produce eggs.
Funnily enough the guidebooks go against the manga as there is more Warrior types than just Nail.
List of references:

Chapter: 285 (DBZ 91), P14.2
Context: talking to Freeza
Great Elder: “Nail won’t be as easy to defeat as you imagine…He’s the only Warrior-type Namekian on this planet. Things won’t go as they have with the Namekians you people have killed.”
Chapter: 295 (DBZ 101), P1.4, P2.1-5, P3.1
Nail: “I-I’m astonished…I don’t know what kind of training you’ve done, but you’ve acquired unbelievable power…Still, it’s unfortunate…If you had only returned to the original, single Namekian you were, you might have been able to defeat even Freeza…”
Piccolo: “Are you saying that if I merged with God once again, my power would even surpass Freeza!?”
Nail: “Th-that’s right…I was overwhelmingly defeated by Freeza, but I should have a good comprehension of his abilities…[ ] So merge with me…! I’m also the only fighting-type Namekian on this planet…[ ] That’s right…Your power will become many times greater…”
Piccolo: “…You’re not lying, are you?”
Nail: “If you think so, you can just go get killed by Freeza…”

Translated Daizenshuu 4 excerpt
Incidentally the three "warriors" that attacked Freeza when he reached Guru's house was filler.

Seems Interesting. Could you share some sources?

For what specifically? Nail saying he's the only Warrior on Namek? The different types of Namekians or the stuff in the guidebook that goes against the manga by saying there are more Warrior types? Also forgot to mention the guidebooks also say that Namekian fusion can only be done between Namekians of the same type.

Yep. The only warrior comment. As I remember 3 other fighter fought bardock when Frieza destroyeda namekian village. I couldn't find anything for the namekian tribes, dragon and Warrior etc. Also drop the guidebook's name if you would.

I added them in the main post as it is relevant to what I said anyway.

Was Picollo/Kami a special case?
No, Picollo didn't even know about the fusion and it was Nail who informed him how it works. That means it's limited to Namekians race and any two Namekian can do it.
How many times could this be done?
Nobody knows it happen twice in anime series and it's still running, so future might tell.
From dragonball.wikia.com

It is more of an assimilation (the alternate title of this type of fusion) than fusion, as one Namekian absorbs the energy, strength, memories, and intelligence or thought pattern of another. Both participants must willingly consent to fuse in this manner and usually the pair agrees to the stronger of the two to serve their body as the host; the reason for this consent is that the body of the absorbed Namekian disappears during this fusion and the consciousness ceases to exist as a body. The agreed host places his hand over the chest of the other one and through unknown thoughts, a flash merges them. After the fusion, the non-host's consciousness lives inside the body of the host from this point onwards and their life span as a body ends. The host's consciousness dominates the body, while the non-host serves to aid him by supplying information, thereby meaning that the absorbed consciousness remains separate from the host's.
The largest difference with this type is that once fused it cannot be undone even by methods that can undo Potara fusions (such as being absorbed inside Buu, evidenced by the fact that Piccolo was found in Super Buu's body, but not Nail or Kami). Both the host and his partner maintain separate consciousnesses: while the host has control of the body, the partner can watch from inside and is capable of speaking with the host's consent; during his fight with Imperfect Cell, Piccolo gives Kami credit for coming up with the idea of playing possum in order to extract information from Cell.

Why didn't the other Namekians assimilate with each other? the 4 1k warriors for example? Couldn't those 4 together be much stronger?

@Arcane They were not warriors, they were mostly peaceful race and who will love to loose his own body?

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Is it true that hiden jutsu can be taught?
I was browsing through naruto wiki, and came across this page
It is stated that ,

They are not to be confused with kekkei genkai, as technically, hiden techniques can be taught to anyone.

By "they", it means Hiden Jutsu. Is it true that they can be taught to others? Is there any evidence of this happening?
I remember in the Boruto movie that the Shadow Jutsu is used through that advanced gadget. But is it possible for a person who does not have any clan relationship to learn a Hiden Jutsu?

I'd go with Yes.
Hiden Jutsu are hidden clan techniques that are passed only within a clan. The nature and need for secrecy arises only because they can be "stolen". Ergo someone outside the clan can learn these techniques. I would also guess that someone outside the clan can also be adopted and taught those techniques. If they meet the criteria they can also figure out by themselves. Lets take some examples.

Hyuuga Clan: Byakugan may be a kekkei Genkai, i.e. Someone only from Hyuga Clan can manifest these eyes. But Neji for example, just because of his natural talent figured out Hiden techniques such as 32/64 Palms, Rotation etc. Later his uncle taught them to him popularly. Now Ao may possess the Byakugan but unless taught he can't use any Gentle Fist techniques.
Uchiha Clan: Kakashi, Danzo etc. have shown to be able to use the clan's Hiden techniques once acquiring the Sharingan. These include Genjutsus, specialized techniques such as Izanami, Kamui etc.
Ina-Shika-Cho: We see other users using the "Reading of mind" on the ninja Jiraiya sent. But when Pain uses it on Shizune, Ino remarked on it as "Dad's Technique". I would think that such techniques are specialized by the Yamanaka clan which may or may not be passed outside. Nara Clan's shadow technique was not used outside the clan. Akimichi Clan probably requires the genetic body build to use the Body Expansion techniques.
Team 8 - Both Aburame and Inuzuka clan raise the children in such a way that they can use their Hiden techniques. The kids in Aburame clan bond with insects, while Inuzuka clan raise a puppy and grow together with them.

Thus Hiden techniques are secret since each individual are brought up/born in a manner that they can only learn their clan techniques.
If Iron Fist Style can be taught, why not the Gentle Fist with someone with precise Chakra Control? Because they don't have the Byakugan to precisely dodge and target the areas while fighting.

well written answer. But for the Hyuga part of your explanation , it seems that a person requires the Byakugan eyes. Shadow techniques are enabled by Yin release and since everyone has a shadow, it doesnt mean they can do the Nara clan's Jutsus and similarly to Akimichi clan's Body Expantion Jutsu, which Yang release. I'll see if anyone gives a better explanation or else i'll assign this answer as correct answer. Thanks for your effect by the way. Cheers

The Uchiha don't have Hiden techniques, all of their techniques are Kekkei Genkai. Genjutsu: Sharingan, Kamui (an ability specific to the Mangekyo Sharingan), Izanami, Izanagi, and other Sharingan-specific jutsu are usable only by someone with a Sharingan. For a technique to be true Hiden, it must be usable by anyone, without anything more than training.

Notice most Hidden Jutsu are actually just Yin and/or Yang based, because everyone has those. Kekkei Genkai on the other hand are always either the ability to combine 2 elements, or a special organ. For chakra fusions, that is permanent, but the special organs can sometimes be transplanted, especially the eyes, to grant other users similar powers, though frequently at a greater cost. That however is not teachable.

@RFKomos Does that mean anyone with Sharingan can use Izanagi/Izanami other Sharingan techniques. Sharingan allows them to predict their opponents moves and cast basic genjutsus. Other techniques need to be taught or discovered.

@Ryan Agreed. But I am not talking about Kekkei Genkai ONLY. I am saying some jutsu's exist which can only be taught if the user has that specific organ. Instead of Gentle Fist, take Kakashi's Chidori. He created as a youngster, but it only became complete once he got the sharingan. Sasuke took it further. If an Uchiha had discovered Chidori and then passed it along his generation it might have been a Hiden Jutsu.

Is there any instance of Yin-Yang release type Hiden Jutsu being performed by people outside their clan?

@Arcane Yes, we saw this with Danzo using Izanagi. Chidori and Raikiri are both neither kekkei genkai nor hiden. They're techniques with drawbacks that become more powerful paired with a Sharingan. Theoretically, anyone can learn Gentle Fist style. But it would be pretty useless because you'd be blindly hoping you're striking chakra nodes, making it horribly ineffective. The only people it's effective for are Byakugan users, which is why only Hyuuga use it. Because only Hyuuga use it, only Hyuuga know it, making it Hiden.

@RFKomos Sort of my point. Chidori is ineffective without the sharingan and it could've turned to Hiden in a similar manner as that of Gentle Fist. For Example. Ao doesn't use gentle Fist even with his Byakugan

@Arcane It's not "ineffective" without the Sharingan. It's just that the Sharingan takes away the weakness of the Chidori/Raikiri. Naruto's Rasengan uses the exact same principle (punch someone with a ball of chakra) and it's very effective, as an example. Any jutsu "could" have gone Hiden, that's a pretty irrelevant point.

@Arcane The weakness of Raikiri/Lightning Blade that the Sharingan fixed was its raw cost to things like perception, mobility, and awarness. Kakshi almost died without the sharingan simply because he could not counter an attack while using his chidori he normally would have dodged. Minato saved him that time, but once he got his sharingan, he could follow and predict everyones movements, so not getting hit was easy again while using it.

I was asking about instances of Nara and Akimichi clan's Hiden Jutsu being used outside their clan. Is there any event of occurring like that?

Hidden ninjutsu are justsu that reserved for a single clan or a single country. Those are secret justsu teaches by generation to generation. That is why it call hidden ninjutsu. It can be taught to anyone.

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Why is Futaba's nickname "Teko"?
In Episode 1 of Amanchu!, Hikari bestows the nickname "Teko" on Futaba, with the following explanation.

Hikari: [Gazes longingly into Futaba's eyes]
Hikari: Wow! Your eyebrows are so thin. They're, like, one-tenth as thick as the average. One-tenth...Tenth...Teko! An adorable nickname!

How did Hikari hit upon this nickname in the original Japanese? And bonus question: the translation I read of the manga translated Futaba's nickname as "Dotty". Was this completely out of nowhere, or does it have some justification in the original?

It's probably a short form of some word that has a "te" sound somewhere at the beginning sticked together with "ko" which means "child" and is commonly used in such nickname portmanteaus. Try listening to what the characters are saying in that scene and you'll probably hear a "te" word.

In Japanese, Hikari says that Futaba's eyebrows look like tenten, the two strokes added to a kana to change the voicing value, also known as dakuten. E.g. か ka becomes が ga.
You can see the resemblance in this picture from the manga, at least if you imagine Futaba's eyebrows both pointing in the same direction:

"Dotty" came from a translation of tenten as "dot", presumably because "Periody" or "Semicolony" didn't sound good.

So Teko is from Tenten no Ko (〃の子 or tenten girl)?

@AyaseEri I assume so. In the scene it seems like Hikari skips straight from tenten to Teko but I don't know where else "ko" could have come from.


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Plot hole: Why couldn't Rukia and co. visit Ichigo with a gigai?
After the Hueco Mundo arc:

 Ichigo has used up all of his shinigami powers to defeat Aizen so he will no longer be able to see spirits, including his shinigami friends.

.

 They share a heartfelt goodbye thinking that they will never see each other again.

.

But couldn't the shinigami come visit in gigai easily? I'm pretty sure Rukia had a thing for Ichigo, so it's kind of weird that she wouldn't come visit at all during the 18 months before Ichigo

 gets his powers back (duh).

That bothered me too. Rukia could also visit Ichigo's friends and set up a seance.

What is Rukia? A shinigami. Renji? A shinigami. I'll exclude the other Shinigami stince they are not that close with Ichigo.
Now, what is Ichigo? He was a Shinigami (Substitute), but after losing his power he is just a normal human.
Does normal human communicate with Shinigami? No, they are not supposed to. Since Ichigo is a normal human after losing his power, he and Rukia are not supposed to communicate with one another. Sure they can communicate if Rukia wears a gigai, but being a Shinigami and a Kuchiki, Rukia chose not to. Renji is a Vice-Captain, so him using a gigai to visit Ichigo every now and then would set a bad example for other Shinigami. This is the first reason, Shinigami and human are not supposed to be communicating with one another.
Another reason is that a that time, the great crisis Aizen "God" Sousuke was overcame mainly due to Ichigo's contribution. He was the one who weakened Aizen enough for the sealing kido created by Urahara to work. He has contributed more than enough in this battle. So, as a veteran, now that he lost his power and considering that he was only 17 at that time, it is perfectly understandable that the Shinigami would want Ichigo to finally have a peaceful life befitting of a human.
With those two reasons, it is perfectly understandable that Rukia and Ichigo parted ways there.
Also, do not forget that normally those assigned to the human world are non-seated Shinigami. Renji is a seated officer. Rukia was not but she got promoted soon after. For seated officers to visit the human world, they would need to pass a certain gate where they would have a seal applied to them which would restrict their power. This procedure requires them to fill a paperwork beforehand. If they were to use this for personal reason (visiting a friend), people would have a bad impression of them, thinking that they are using their position for their own personal needs (nepotism).

as well, they are still Gotei 13 members, and eventually both are vice capitans, so they have duties to attend to. Its not impossible that Aizen left a lot of stuff that needed to be done, and we know how much paperwork a captain and vice captain need to do normally.

Damn, that's some Montague and Capulet level separation. IchiRuka forever

The man is more shinigami than anyone, most shinigamis would want a handshake with the ultimate war hero. Explains why none is bothering him, but depriving the world savior of his dearest friends to give no "bad impression" gives a bad impression really.

@Leonid It's not like they separate forever. When Ichigo finally dies, he'd be able to rejoin his shinigami friends. Therefore, while he is still a living human being, the least the Shinigami can do for the guy is to give him a peaceful human life.

After the Thousand Year War she visits Ichigo from time to time with Renji, and bless the great mind of Urahara, because he invented the Soul Society, a world of living "Discord", so now they can talk more often.

I'm confused reading this answer. I may believe the first part about the Thousand-Year War (though source/reference is needed)... but Discord and Civ 6?

@AkiTanaka If I understand correctly, this user is comparing the Soul Society to Discord, and jokingly suggesting that Ichigo and Rukia could play Civ 6 together while inside it. I've tidied up the answer a bit to make it clearer and remove the jokey part.

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How does a series go from manga to anime?
In a previous question, I asked about Dragon Ball Super being released before its manga. My question here is about the life cycle of a manga becoming an anime.
From my understanding, an artist or mangaka creates their comic called manga and it gets published by a major studio if it's deemed worthy. From there if it cultivates a big enough fan-base it becomes licensed by a studio like Viz, Funimation or Bandai. And from there it becomes a game, movie, t-shirt, toy, etc.
Is that the way most anime's come into play? If not, what is the proper life cycle from drawing to manga to anime?

Related: http://anime.stackexchange.com/q/11446/7579

Anime might be produced based from many types of different stuff, not limited to manga, but also other stuff, like light novels. There are also some anime that aren't based on any manga.

From my understanding an artist or mangaka creates their comic called manga and it gets published by a major studio if it's deemed worthy.

Yes, this is pretty much correct. The mangaka can release their own manga too, but it is less likely to be as popular.
The mangakas usually work together with magazines like Jump where they have someone they can show their ideas, drawn simply. If their idea gets accepted, they start on producing it with more details.

From there if it cultivates a big enough fan-base it becomes licensed by a studio like viz, funimation or bandai. And from there it becomes a game, movie, t-shirt, toy etc.

Yes, this is also correct. The mangakas license their manga with some companies to make it an anime, and swags of it.
I really recommend you to read the manga or watch the anime of "Bakuman." which tells the story of 2 teens producing manga (and aiming to get one produced into an anime), with very good amount of details on every part of the production cycle.

Ok so magazines are a publisher of manga but they are also different from studios. Kind of like a newspaper and news broadcast. I guess would be a good way to compare em?

Also a follow-up to that. When a publisher decides to buy a mangaka's work. Do they get a team and become a leader of that team? Or do they continue to work solo?

@KazRogers first comment: kind of. More like book publisher IDONTKNOWANYFOREIGNONES and Sony Pictures. Second comment: depends on mangaka

Yoshikawa Miki of Yamada-kun to 7-nin Majo was assistant of Mashima Hiro of Fairy Tail. Most big mangakas work in a team. It'd be near impossible for them to meet deadlines on their own since they need to think of the story idea while also drawing and toning


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What's the symbolism behind the backgrounds shown in the opening sequence?
In the opening sequence of Samurai Champloo, when Mugen and Jin are shown, the background is composed of pictures of roosters and aquatic animals, respectively.
Mugen has roosters for background:

Jin has fishes and octopus in his background picture:

What is the symbolism behind such background depiction?

I always assumed it was to do with Mugen's and Jin's personalities. Roosters being energetic and feisty as seen in cock fighting and fish/the sea being calm and patient. though i nothing to really back this up

Yeah, I thought just the same. But there appears all varieties of fish and even an octopus in Jin's background. That got me thinking that maybe it's not only the personality traits.

Different fishes could represent  knowledge and variety within his "fishy" style. That's how I see it.

Roosters are a traditional symbol of Shintoism, associated with the sun goddess Amaterasu. Shinto is a philosophy indigenous to Japan, and therefore thematically related to loyalty & nationality, like Mugen.
Jin's main fish is colored like a koi, the Japanese word for "carp". Koi are obviously symbols of Japanese culture, associated with love & friendship. Aquatic life is from the ocean, the realm of the storm god Susanoo, Amaterasu's sibling & counterpart.
Check out the story of Amaterasu & Susanoo, as it has obvious parallels to Mugen & Jin's relationship. Interestingly enough, they have a third sibling, Tsukuyomi, the god of the moon, who acted as a foil, kind of like Fuu. And Tsukuyomi's falling out with Amaterasu resulted from a conflict with the goddess of food... "Her stomach is like a cosmos unto itself!"

Definitely their fight styles, Mugen is more energetic and wild, Jin flows with the water like a fish, Mugen learn some flow in the series when he fights the samurai killer

Welcome to [anime.se], a Q&A site about anime & manga. This might be a good start for an answer, but could you expand more, especially why a Mugen's rooster indicates "more energetic and wild"? You can always [edit] your post. Also, providing some example scenes showing their traits would improve this answer much more. Meanwhile, consider taking a quick [tour] to understand how this site works.


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Why does Sakura's inner voice say "cha" at the end of her sentences?
So this answer explains why Naruto say "dattebayo" or "believe it" in the English translations, being that he inherited it from his mother.
In earlier episodes of Naruto when Sakura goes to think of what she really wants to say, this occurs in the form of white drawing lines of Sakura with writing on her forehead with black background. See the image below:

In the English dub, the second Sakura often ends her sentences by saying "cha".
What is the reason for this? Is this something she picked up from her parents like how Naruto inherited his mother's habit, or is there some other explanation for this?

According to Catchphrases and Verbal Tics from Naruto Wikia, the phrase "Cha" was replacement of "Shannarō" and "Shannarōyo" in the English dub often used by Inner Sakura, which have no literal meaning, but it can be translated into "Hell yeah!", "Hell no!", or "Damn it!" depending on the situation.


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Why does Kojirou say "white hole" in the Japanese version of Team Rocket's motto?
Torisuda mentioned he'd be interested in how the joke went in the Japanese version of Pokemon on my question about why Team Rocket's motto seems so nice. This prompted me to listen to the Japanese version of the motto on YouTube.
I came across this line in the Japanese version of Team Rocket's motto where Kojirou says:

コジロウ: ホワイトホール、白い明日が待ってるぜ

Why does he say "Waito Hooru" (White Hole) here?

"white hole" as in the "opposite" of an astrophysical black hole. Why? Who knows. I'd say probably because it sounds cool? cf. http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q149157244, http://oshiete.goo.ne.jp/qa/259543.html.

It does kind of go with the whole rocket/space theme.

There used to be an interview about the production of Pokemon and they did explain it. The phrase translates to "white hole, white future awaits us". Sometimes, however, it can also translate to "bright future awaits us". That's why they wanted to use white, and the hole part of it is because it's a pun. Team Rocket and white holes, rocket and space which has black holes in it, get it? Rocket goes into space and there are black holes in space, but we need the color white so it became white hole. If this doesn't make sense, then leave a comment and I'll try to put it into other words. Unfortunately, I can't find the interview anymore, but hope this helps.

I think it makes sense, it's just a terrible pun? Is that all?


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What's Agepoyo and Doyagao?
In the last episode of Danshi Koukousei no Nichijou, part "High School Boys and Lies", Motoharu asks Yoshitake about different things to which Yoshitake gives absurd replies (with the exception of the last one):

What's "Twitter"?
What's "KY"?
What's "Tsundere"?
What's "Doyagao"?
What's "Agepoyo"?
What's an "MMORPG"?

An example of the absurdity of the answers:

Motoharu: What is Twitter?
Yoshitake: It's Italian food.

I understand all of them except Doyagao and Agepoyo. Tried googling but didn't get it. Can someone explain them simply?

FWIW "doyagao" is translated as "doya face" in the Hulu upload.

Googling for "doya face" gives this: http://en.rocketnews24.com/2014/01/20/the-doya-gao-phenomenon-and-where-youre-most-likely-to-see-it/ which fits in more or less with the results on Google Images when I tried searching in Japanese. Still not sure about "agepoyo".

Whoever created those subtitles was remarkably lazy.... By the way, are you sure that you know what "KY" means? In this case, it's "kuuki yomenai" (空気読めない), a term used to pejoratively describe people who miss implicit social cues. cf. http://japanese.stackexchange.com/q/372/

Lol yes, I know what KY means, but thanks anyways. I asked this question last year: http://anime.stackexchange.com/questions/23871/what-does-k-y-mean :P

Doya-gao (ドヤ顔) is a slang term for the face made when showing off. Usually they make the recipient irked, though sometimes it is considered cute depending on the situation. It comes from the Kansai dialect version of "dou da「どうだ」", which is "do ya「どや」", a phrase that translates to "How's that?" So, the literal translation would be a "how's that face".  A Google search provides some nice examples.
Age-poyo (あげぽよ) is a slang term used by gals (or kogals), a subculture set of high school girls. The "age" part comes from "age-age (アゲアゲ)", another slang term meaning "in high spirits" or "rockin'".  Basically these terms are used when you're liking something or things are getting exciting. The "poyo" part is an auxiliary suffix that has no meaning. Apparently it was added because it "sounded good".  Note that native Japanese speakers have trouble with understanding this, so I'm not sure if my explanation is 100% accurate. Also, I do believe that the word is dying out since its peak in 2010.


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Is Cheese-kun real?
In Code Geass, particularly in the original Japanese version, we can see there was something like a product placement exchanged (as shown in this answer) between the series and Pizza Hut.

Later in the series, C.C. starts having stickers and a giant plush of what appears to be Pizza Hut's mascot, named Cheese-kun.

Now, back when Code Geass first appeared in the west, I did not notice Pizza Hut having anything like Cheese-kun in Australia, but then again it appears there was an attempt to remove Pizza Hut references from the series when it was localized in the west.
So I am wondering, does Cheese-kun exist in Japan? If so, did it exist before or after Code Geass? Who created it, the author of Code Geass or Pizza Hut? And does it still represent Pizza Hut now?

I do recall Cheese-Kun being the official mascot of pizza hut Japan around 2008/2009.

So I am wondering, does Cheese-kun exist in Japan? If so, did it exist before or after Code Geass?

Yes, Cheese-kun exists IRL and predates Code Geass. See, for example, this 13 Aug 2006 Wayback Machine snapshot of a page on Pizza Hut's Japanese website, which includes images of Cheese-kun.

And does it still represent Pizza Hut now?

The /pizzahut.japan Facebook page (Pizza Hut's official page for Japan) made a post that includes a picture of Cheese-kun just a few hours ago, so I'm going to assume yes.


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By number of series, how much of the animation industry is made up by anime?
Today a friend of mine proclaimed that around 70% of the world's cartoon animation entertainment consists of anime. So according to his statement, for every 3 non anime animation series, at least 7 anime series should exist.
After looking through his proclaimed source wikipedia I could only find out that about 70% of DVD sales are made by anime, which sounds reasonable, but does not back up his 3 to 7 cartoon to anime series ratio at all.
Now I know that anime is well-known, even around the world. But claiming that around 2/3 of all cartoon animation series is anime sounds a bit of an overkill to me.
This however made me wonder, what is the ratio of non anime cartoon series to cartoon series, or how much do anime series (roughly) make up of animation entertainment series overall?
Although the first few animes were already observed as far back as 1907, anime really launched around 1960 after/during Astro Boy, and as new series are made just about everyday for both anime and non-anime alike, I would propose a time limit of 1960 till 2015.
TL;DR
What is the ratio of anime series versus non anime series?

You want to know if anime makes up animation from the beginning of the existence of moving pictures up to now? Considering old Warner Bros. and Disney characters are still remembered today, I highly doubt the history of animation is made up of mostly anime.

@ton.yeung Series, multiple seasons = 1 series. Alternative universes = a unique serie as well. Ova's and movies can be disregarded

Counting by "number of series" is rather silly. It has its uses (e.g. it can help answer the question "does Japan produce a wider variety of animated television shows than the rest of the world?"), but it is not a particularly good metric for answering the question "does Japan produce more animated television shows than the rest of the world?".
Anyway, I deem this claim implausible. IMDB lists 1937 TV series tagged with "Animation" from the US from 1960-2015. It lists 2265 TV series with the same search terms from Japan. We get another 557 titles from France; 171 from Germany; and so forth.
While IMDB is probably systematically biased in favor of having more complete data on US shows than Japanese shows, and also does some weird things like listing "Kimba the White Lion" as a US show, I do not think that the numbers we're looking at support the claim that Japan produces 70% of the world's animation by series count. (I would agree that Japan probably does produce at least a plurality of the world's animation by series count, but series count is a lousy metric, so.)
Incidentally, there's also a very nice whitepaper by the MLIT that I happened upon that doesn't answer this exact question but otherwise has very nice data about the anime industry.

furthermore, what about shows that were produced in multiple countries? i know the children shows Die Biene Maja (Maja the Honey Bee) which is a japanese-german coproduction, giving it the style of an anime. is it an anime then? or is it a normal cartoon from germany?

Very interesting paper, all though a bit hard to read with my limited Japanese.


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What anime is this black sword from?
Here is a pic:

I got this sword at the Facts convention in Belgium, and suspect it's from an anime, but I am not sure which one. Is there anyone who knows it?

Despite the fact that I was able to identify the sword, please note that image-only identification requests are usually frowned upon in this community — in fact, this one is borderline only because it is about cosplay/merchandise. It would be great if you could add some more details, such as where you got the item from, if it has any marks that help identify what's its manufacturer or collection, etc. — so that we might be able to point you to an actual page on the product, for instance, so that you know the exact product you have in your hands.

I understand I got the sword from a convention soo I don't know the original retailer, but will take the advise into account.

Feel free to edit any more relevant information into the question — the more you add, the more likely your post is to be able to help future users (who may have acquired the sword in the same convention, for instance).

It looks awesome if I do say so myself!

That should be Uchiha Sasuke's Sword of Kusanagi, from the Naruto series:

However, I'm not sure whether or not the Uchiha crest is ever shown to be on the hilt of the sword in the series.

It's safe to assume that this product is what you've purchased.

JNat was correct.


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What's "an OB" in the Karate Shoukoushi Kohinata Minoru manga?
I have started reading Karate Shoukoushi Kohinata Minoru manga, and there is this title "OB" for some kind of teacher or guardian, like I supposed to understand what it means.
Google Translate doesn't know it, googling "karate ob" goes to "obi", and I can't find any translator's note.

Well... being an OB, I really didn't want to get involved in such trouble, but...
(bottom-left panel)

It might be a Martial-Arts related expression. I have also found an Urban Dictionary post for Old Boy, but at chapter 30 page 4.
There is a sentence:
"Akida-Sensei the examiner, is the OB of the Reinan Second Karate Club"
Like, there can be only one OB for a club ... so unless graduation is a battle royale like elimination, i don't think it means alumini, and there was a old lady ob if i'm not mistaken.

@Ba.Ka. No, it's definitely "old boy". The use of "the OB" is presumably an error on the translator's part. Japanese does not have articles (a/an/the), so the translator seems to have picked one at random ("the"), but chose wrong. Despite the term coming from English "old boy", it can be used for women as well (though a rarer parallel term "OG" [from "old girl"] also exists). Keeping "OB" in translation is a poor choice, since it doesn't mean anything in English, despite having an English veneer to it. (Apparently the Brits say "old boy" for "alumnus", but they'd never abbreviate it to "OB".)

@senshin Why not post that as an answer?

According to the Oct. 1965 issue of Black Belt magazine:

Beginning of (the Second Sino-Japanese War) in 1940, about 30% of Japanese colleges and universities had campus karate clubs allied with one or another of four principal schools of karate, referred to as "ryu." In addition to the club on campus, each of these universities had what is referred to as an "O.B." karate club. "O.B." here stood for "Old Boys" and was made up by the particular school's alumni.

These OB clubs typically served as advisors for the student clubs. So "OB" here most likely refers to alumni, a graduate or elder disciple and liaison of sorts of that particular school, some of whom might later become instructors.
It would make sense, judging by the notches on Tachiyama's belt that he's a senior amongst the Judo club.
Here are the original pages for reference:


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Why was the Lord of the Coast allowed to live?
When Luffy was young, Shanks saved him from the Lord of the Coast, who nearly ate Luffy. This cost Shanks his arm. Then we see the Lord of the Coast still inhabits the area 10 years later.
Why was this dangerous sea king not dealt with by Shanks or Garp during this time?

This is a bit of a strange question, but basically for the same reason any shark or bear is allowed to live in the real world. The Lord of the Coast didn't just bite Shanks' arm and scare Luffy, he killed and ate Higuma the bandit, and probably others as well. But because he lives in the water, he's not easy to find and kill, and neither Garp nor Shanks are the kind to want to put Luffy in a completely protected environment.
Even if someone did find and kill the Lord of the Coast, they've hardly made the ocean safe for children, there are plenty of other Sea Kings and sea creatures out there, and it's even possible the Lord of the Coast was actually making Foosha Village a little safer by occasionally eating some unpleasant pirates headed to the island.
It's also worth noting, Luffy almost certainly didn't kill the Lord of the Coast, just punched him out of his way and moved on. He is probably still in the area, traumatizing or killing the crews of other small boats.

but luffy is not so far from the village when he attacked by it. I wonder how many villager trying to set sail , or curious children playing  got eaten by it.


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What was the first anime aired in HD?
I saw this post about What was the first anime to come out on Bluray/HDDVD on this site, and I wonder what was the first anime that aired in HD?
I first thought of it is aired in around 2008. For example:

Bleach started to air in HD in season 9 (episode 168). According to Wikipedia, the original airdate of episode 168 is 2008.

But after hours of researching, I found something about One Piece.

One Piece started airing in HD in episode 207. And again, according to Wikipedia, the original airdate is way back in October 31, 2004.

The recent answer shows these 2 anime (Ghost in the Shell: SAC and Samurai 7) were the possible first anime to air in widescreen.
Fun fact: Samurai 7 is aired just 4 months earlier than One Piece. Does this makes One Piece the 2nd runner-up? LOL.

Videos are HD only if we compare one video with another one ... So how are we comparing?

@LightYagami "HD" typically means "resolution of 1280x720 or higher".

@senshin Sorry but I was confused, because in wiki it says that "High-definition, sometimes abbreviated as Hi-def or HD, commonly refers to an increase in display or visual resolution over a previously used standard."

Kure-nai aired in HD starting in April 2008. Not sure if it was the first, though.

@LightYagami Yes, generically "high-definition" is an antonym of "low-definition", but high-definition television is characterized by particular video resolutions.

You question intrigued me quite a bit, so I decided to try to solve this problem. Here is what I found and I would be grateful if anyone can help me improve my answer!
The first thing I knew was around 2007-2008 was about the time HD started getting popular in the United States. I used this information to track down a couple of forums on the AnimeNewsNetwork Here and Here. These two threads were very useful as they gave the names of "Samurai 7" and "Ghost in the Shell: Stand Alone Complex" (aka "GITS SAC" as used in the thread).
I pulled up the Wikipedia page for Samurai 7 and one part of it reads:

The series premiered across Japan on the anime satellite television network, Animax, as an exclusive high definition CS-PPV broadcast

Now I am not sure if you would like to consider it as aired in HD as it was "Pay Per View" (aka "PPV"), but it was created in HD based on this page about the series:

Based on Akira Kurosawa's classic movie, The Seven Samurai. Samurai 7 is being produced in High Definition at a price of $300 000 per episode, more than twice what an average non-hi-def series costs.

Now the reason I also included "Ghost in the Shell: Stand Alone Complex" is because in the forums many of the people were also saying that this one was also HD. I was able to find out that it was also aired by Animax, but cannot confirm if it was aired for HD.
If GITS SAC was not aired in HD then it would make Samurai 7 the first anime aired in HD (or at least as far as I can find).
Now I am very weary about my research, as I think there may have been other anime's aired in HD before these two, and my main concern comes from this article written in 1998. And the way the users in the threads were talking about HD as it was not something new, also makes me wonder if there have been anime's before these two that were aired in HD.
I will continue to do more research and improve my answer as I go.
I hope this answer can help you.
UPDATE:
I was able to find this question, where "Toshinou Kyouko" pointed to this thread. In the thread "Zalis" states:

First 16:9 TV anime: Betterman (Spring 1999), Vandread (Fall 2000)

I am currently trying to find a source that can verify if these shows were created in HD 16:9 aspect ratio. (Thanks to "Ross Ridge" for pointing this out.)

You should be able to post your links now

OMG I can't believe the first HD anime is aired back in 2003(GITS SAC) or 2004(Samurai 7)!! I used to watch anime that aired in around 2005-2008 on my computer, the quality still crappy even though it is ripped from DVD.

Thank you to everyone who has upvoted my answer to allow me to add my sources! @Happy Face I know, it is hard to believe that they started airing anime in HD back in 2004. I didn't believe it myself when i found out about it.

Note that 16:9 TV doesn't imply HD. Many DVDs are in 16:9 for example, and Europe started transitioning to SD widescreen TV broadcasts in the mid 1990s.

@Ross Ridge Thank you for pointing that out, I have updated my answer with the correct phrasing.


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Why do they censor vomiting in anime?
In vomiting scenes, the liquid is censored by rainbow, mosaics or bright light. Why do they censor puke? Blood shedding, killing, fighting, taking alcohol, bad language, nudity (without showing genitals), vandalism, etc are almost never censored. Why is vomiting treated like this?
Examples
Mosaic censor in Gintama.

Rainbow censor from Nichijou.

White light censor from another show.

Old shows (the ones aired before 2010) usually don't censor vomiting.
Golden Boy (1995-1996)

I think it's probably too disgusting to think anyone would want to see it, and it's used for comedic effect, so it's stylized or blurred to be less repulsive

Note: the Rainbow vomit is usually not for the same reason as the other vomit scenarios. usually that one is as an extreme expression of more positive emotions, like love, euphoria, happiness,...

Simply put, nobody wants to see the vomit of anyone as it is so creepy and disgusting that even children will not like it.
There can be many reasons behind this:
1. Gross and disgusting or creepy
According to me, no one wants see any character who is simply vomiting and taking out all his food.
The vomit chain reaction
It's like when one character vomits then those standing near them also start vomiting. Like as shown in this link,

This is Truth in Television, since vomiting has been known to inspire
vomiting, as part of a prehistoric instinct: if someone from your same
tribe vomits because he ate something harmful, chances are you ate the
same thing and therefore it's best if you hurl it too.

And this thing happens in real life. There are many people who really vomit in this situation and there is this link which shows why we vomit when we see something gross. Which perfectly defines that there are some people who don't like watching some vomiting scene and for the safety of viewers they censor it just because they are creepy and disgusting.
2. For comedy
Since it is disgusting, that's why to make it a bit funny or comedic, they add rainbow puke which looks kind of fine.
3. For safety viewers and broadcasting restriction
Also there might be the possibility of broadcasting restrictions as they don't want any unnecessary problem. They might think that vomit scenes might not be good for children, so to make it safe for viewers, they censor it. I am not sure but they may have shown vomiting scenes in late night anime.

Still, there are so many anime which shows characters vomiting, like in:

Before the deployment in Episode 5 of Attack on Titan, soldiers are shown to vomit due to stress.

In the un-edited versions of Dragon Ball Z, Gohan kicks Cell in the stomach so hard he causes him to puke up Android 18, along with lots
of acid.

And there are many more.

As far as killing someone or blood is concerned, then nowadays these things are pretty much common and only few people are afraid of these scenes. And if they start censoring these scenes of blood and killing, then there is no action (until and unless it's not harsh).
If it comes to nudity, then there are some Vanilla series anime which don't censor anything as they are categorized as adult stuff or late night anime (I am also not sure about anything regarding this).  They don't censor late night anime only because no children are watching them at night time.

These are all memes, or else a progression and mutation of a single meme. There's no requirement to censor vomit, but it's done both for comedic effect and to maintain the aesthetic (no visceral imagery).
The mosaic barf was an extension of the meme where mosaics are used to hide or even just imply something too gross to look at. That meme is still used for bad cooking sometimes. That in itself isn't really funny, but eventually someone came up with colored sparkle barf (I think it was korezom first?) and full on rainbow barf followed very soon after, rapidly becoming a successful meme.


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Where and when Mugiwara Crew's new bounty poster taken?
After reading this question about why Sanji's bounty poster is drawn, not his real picture. I was just thinking about the bounty posters itself.
I know that aside from Luffy, the rest of the crew's bounty posters are taken after Ennies Lobby arc.
But how about their bounty hunters picture after time skip?
I know it's probably when they are in dressrosa, but if I saw Sanji's and Chopper's posters, it's seems that their posters are taken in Sabaody Island.
And also Franky's bounty poster taken when he's in Punk Hazard or Fishman Island because it's shown his Franky Shogun, not his true face.
He only used Franky Shogun at Punk Hazard when battle with Buffallo and Baby 5 and when he's battle Fishman Pirate at Fishman Island.
So, I want to know where and when Mugiwara Crew's new bounty posters were taken?

Like most other bounties in the series, I do not think that the location or the time at which the photo was clicked will ever be revealed in-universe, so here's what the new bounties make discernible:
Here is a picture of the bounties of the Straw Hats after time-skip for reference:

Luffy: It's hard to make out when Luffy's photo was taken as it lacks distinctiveness, but as for where: It was taken on the Fishman Island. My basis for saying this is because he wore that outfit only on the Fishman Island. This was his getup at Punk Hazard, whereas his getup at Dressrosa was this. As mentioned on the Wikia article on Luffy:

During the Punk Hazard Arc, Luffy wore a long winter coat with red and white horizontal strips, along with yellow ear muffs, which he stole from one of Brownbeard's Centaur Patrol Unit.

During the Dressrosa Arc, Luffy wore an open, short-sleeved shirt with a sunflower pattern, along with his standard blue shorts and yellow sash. He also wore a fake beard.

Zoro: Based on Zoro's expressions, it is most likely taken just after his fight with Hyouzou on the Fishman Island. That's one of the only two scenes where he wears his bandana after time-skip (the other being in his fight against Pica), but the expression is strikingly similar to one he made after his fight against Hyouzou.

Usopp: Usopp's photograph was taken at the moment when he was crowned God Usopp at Dressrosa with Hajrudin holding him up. The same expression can be seen here.

Nami: Based on her pose, her photograph was likely snapped on the Fishman Island when she was with starfish Pappug, creator of the Criminal fashion line.

Sanji: Based on his expression, his photograph is taken on the Fishman Island when he's running to jump in for a swim with the mermaids. The scene is from Episode 528 of the anime.

Robin: It is hard to judge where and when the photograph was taken. All we can say for sure is that she's in her fighting pose, so it's either before or during a fight. A likely candidate for where though, is Fishman Island as that's where most of the photographs have been taken, at Gyoncorde Plaza as she gets ready to fight Hody's underlings.

Chopper: It is most likely taken during a great banquet at the King's Palace as he has a cotton candy in his hand. Most likely, it is the banquet at the palace after the fight with Hody was over. This would put the location of the photograph as Fishman Island.

Franky: He used Franky Shogun at Gyoncorde Plaza and at Punk Hazard. However, the former is more likely to be the location where this particular photograph was taken because that's where most of the photographs are taken, and I don't think there was anyone at Punk Hazard who could have taken this picture.

Brook: It may be from one of his gigs as a Soul King before he continued his journey with the Straw Hats or from a scene during/after his fight with Hody's underlings at Fishman Island. However, as stated in Chapter 801 of the Manga, on this page, it is indeed his concert poster.

Well, because their new posters are shown after dressrosa arc, I thought their pics was taken at dressrosa. But just realise that they pics are from different location because Franky Shogun :D

Oh, about Brook's wanted poster, I think it's from his world tour poster. I think they said that when first time they see the poster.

@JTR Yeah, that's true. Checked the Manga and updated the post.


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What is the reference Iri is making when she says DDD?
In Episode 1, Iri and Student 0 have the following conversation:

Student 0: There's no future to it (the War) at all. Why only one team, Instructor? I think everyone should just share it (the Grail).
Iri: There are DDD circumstances behind that, so I'm sorry. I'd like to tell you in greater detail, but it won't happen. It's still too early for you to experience the adult world.

On the chalk board behind her, it shows Dark, Dirty, Dandy.

Since this entire mini-series is cluttered with references to the Fate series, I'm wondering what this DDD means in relation to the Fate series?

I belive it's referring to Decoration Disorder Disconnection, AKA DDD, which is another title written by Kinoko Nasu which was published in Faust magazine

Arika Ishizue lost his left arm in the A-syndrome related accident and hospitalized. After he left the hospital and went back to Shikura, he met a beautiful boy named Kaie Karyou who has no limbs and is living in a dark basement. The boy asked him to exorcise the "Demons" possessing A-Syndrome patients. Arika was involved in the bizarre cases and the fights with the "Demons".

Source: DDD on Typemoon Wikia
As the Wikia also states there are no connections between DDD and the rest of the Natsuverse, even though Mitsuru Kamekura from Kara no Kyoukai is refernced in it as the wiki states

it is simply a gimmick included by Nasu to cause readers of both to do a double-take while reading. It is actually a pseudonym taken from a character in a book in the DDD world.

However i do not know how being able to share the Holy Grail or not is related to DDD or how explaining it is "too adult" for Student 0. however given the case with Mitsuru Kamekura this could be the same thing with it being a gimmick by Kinoko Nasu and/or Gen Urobuchi to cause those who have read DDD to do a double take


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manga identification help
Last year I read a manga of which I remember quite some bits. It was an interesting one but I don't remember it's name or characters name please help me find it.. here's what i remember-

the main character is a teen boy in class probably high school
thinking about his life and his best friend/classmate greets him
everyday.

the main character develops self awareness & realizes a repetition in
everyone's life or everyone is maybe programmed. when he tries to question his classmates they get hostile towards him but maybe go normal after sometime like nothing happened. and his best friend too gains self awareness they realize they can't recall their past or when they spent time together etc.

their group gets a bit bigger and they find out there is a wall
around the city they even get attacked by a robot which main
character defeats..

I also recall scenes like them making a hole in the wall to pass
through and main character telling others that they never went out to
buy food or anything but still find their necessary items everyday so
something must be in charge of them.

also when they get out they walk a lot and find another city.
hope this much info is enough.. thank you in advance please if you know the name of this manga do tell.. :)

The manga your looking for is Classmate, Kamimura Yuuka wa Kou Itta

Shirasaki is incredibly bored by his unchanging daily school life and he ends up falling in with his weird classmate Kamimura Yuuka, who rants about changing the world to his uninterested classmates. However, when she reveals the truth about the nature of their world to him, everything will quickly become stranger than he would ever have expected!

thnx a lot swswsws.. :) and sorry for the inconvenience  guys I just used it for first time that too on a mob. hope you understand.. anyways thanks again y'all :)

No problem and your welcome.


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How can I improve the frame rate of a low frame rate anime?
After reading Senshin's question about why Sidonia no Kishi has such low framerate, I wondered: is there not a way to improve an anime's frame rate on our end, similar to the way HDTV's do?
What are some ways to improve the frame rate of a low FPS anime?

Personal soapbox time: I don't think it makes sense to use SVP for anything besides maybe full-CG anime (Sidonia, Arpeggio, etc). It's not as severe with drawn animation as with live action, but you still get a healthy dose of soap-opera-ization. (Japanese) animators have refined their techniques over the past half-century to look good despite limited frame rates; interpolation kind of kills that, IMO.

As mentioned, HDTV's achieve this effect as described by using Motion Interpolation to generate intermediate frames, reducing the choppiness of the movement. If you are streaming the show to your TV, ensure you have such a feature (Motion Plus, TrimensionDNM, Motionflow, etc.) on and you should notice an increase in frame rate.
In case you're wondering if there is really a difference, here is a video showing 24 FPS and 60 FPS anime side-by-side. Ensure that you set the YouTube player to to 1080/60FPS to be able to notice the difference.
https://youtu.be/kHPVDXwMxiA
This video highlights Motion Interpolation generated by Smooth Video Project on a Windows computer. The free version of their software will allow us to increase the frame rate of our shows from 8/12/24 to 60FPS.
It is important to note in general, anime production companies do a good job at creating smooth action scenes without the need of more frames. The cases that SVP is useful is generally limited to computer generated imagery. Anime that consists of mainly CGI and 3D visuals benefit from this interpolation especially well in cases where the background imagery is rendered in 2D, as it will make the character movements appear much more fluid. While maybe anecdotal, I personally tested it on Sidonia no Kishi and feel like it did a nice job to resolve the choppy animation in that show.

For information on setting this up, refer to their manual. SVP requires the installation of additional software, ffdshow and LAVFilters in order to process video. SVP is not a video player, this page has a list of compatible video players.
Additional reading on FPS in anime: What does it mean for animation to be done “on ones” or “on twos”?

Wow! I'm not that into anime, but SWP is awesome!

I have to agree with senshin here, motion interpolation does not actually constitute an "improvement" of the work. The comparison above is rather silly, since (a) the left side pretty clearly has higher contrast, brighter individual frames, as you can tell simply by pausing the video, and (b) the sample in question is a high-quality OP segment with a fairly large amount of CGI and a high starting framerate, which is where SVP ought to perform best...

When applied to a more typical anime scene with low framerate, you won't see much difference, and where there is a difference the interpolated video will typically look worse (even ignoring noticeable artifacts, which can and do occur unless you spend a lot of time tuning the settings). Of course, that's a personal opinion, but it's clearly shared by most animators, since animation studios themselves could easily use this technology but deliberately choose not to.

@LoganM In order to cover all sides and form an objective answer, I've updated my answer to include the points you and Senshin bring up. Feel free to let me know if you feel that this information is incorrect.

I used SVP before, and well.. since I seldom watching CGI-rendered anime,  I usually just enjoy the smooth background panning (usually on OP/ED), but other than that, nope. Also, you probably forgot to include SVP settings for watching anime.

@AkiTanaka It seems the latest version's "Optimize for Animation" option does this.


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What statues are Dandy2Men based off of?
In episode 7: Civil War Brewing, we are introduced to Dandy 2 Men.
There is Man of Conviction: Brutus:

and Unexpected King of Comedy: Molière:

I'm familiar with the character of Brutus, but not Molière.
Are these real life statues, like those of the Sekko boys?

Brutus

Marcus Junius Brutus was a politician of the late Roman Republic. He is best known in modern times for taking a leading role in the assassination of Julius Caesar.

This bust as created by Michelangelo and can be found in the Bargello museum in Florence

Molière
Molière is a french playwriter. He is famous in France for his pieces of theatre he wrote.
As a side note, Molière is really famous in France. We sometimes use the expression "The Molière's tongue" to refer to the French langage
The statue of Sekko Boys is based on a real-life statue, which can be found at the Louvre, in France.


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Was there truly no magic in Sword Art Online?
In the first episode, when Kirito was showing Klein the ropes of combat, the conversation goes

Kirito: However, there is no magic.
Klein: An RPG without magic? That is a bold decision.

However later on in the show, Kirito visits Lizbeth's shop in Temperature of the Heart.. Kirito is in shop for another sword, and shows Lizbeth his Elucidator.
Lizbeth responds with:

An Elucidator! This is the gnarliest magic sword a person can get from a monster drop.

If magic did not exist, how would there be a magic sword?

In SAO, there are no magical spells that players can cast. However, according to the light novel, SAO does have some magical items and aspects. Some of these items include gems which players could use to instantly teleport, heal or recover from poison. There is also the Divine Stone of Returning Soul that revives a fallen player.

This text and the following quotes are taken from the second volume of the light novel.

The few magic items in this world where  had been excluded were all shaped like gems. Blue was for instant teleportation, pink for recovering HP, green for antidotes, and so on. They were all convenient items that produced instant effects, but they were also expensive. So in most cases people used cheaper items such as slow-acting potions after running away from a fight

Certain parts of the game could also be considered magical such as the teleportation gates used to move between floors, and the alters found in churches. These altars would allow a player to bless their weapons when facing undead opponents. Also, if a player was cursed they could use the altar to remove the debuff.

It was the unmistakable mark of a church, of which at least one exists in every town. And through the altar inside, tasks such as removing the attack unique to monsters, «Curse», and the blessing of weapons to go up against undead monsters with, were possible. In SAO, where magic-based components barely exist, it could be considered a most mysterious place.

As for Elucidator, the light novel describes this as a demon sword, not a magic sword. However, both the English sub and dub refer to it as a magic sword. As discussed in the comments, I believe this is an error in translation. So there are no magical weapons in SAO, but they do seem to have other forms of magic.

One is «Player made», which meant weapons made by us blacksmiths. The other included weapons that one gained from adventuring as «Monster drops». Needless to say, blacksmiths don't like drop weapons all that much. I couldn't even begin to count all the names like 'Unnamed' or 'No brand' that were given to them.
  But this sword seemed to be a very rare item amongst monster drops. If you compared the average quality of player-made weapons and monster drops, the former was better. But once in a while, «Demon Swords» such as this one appeared— that was what I heard.

You misunderstood the context of Klein and Kirito's conversation. The line directly preceding what you quoted is very illuminating.

Kirito: I've heard there are an unlimited number of skills. However, there is no magic.
  Klein: An RPG without magic? That's a pretty bold decision.
  Kirito: Isn't it more fun to move your body as you fight?

Since the conversation is about sword skills, Kirito is undoubtedly referring to magic spells, such as those that can be cast in Alfheim Online for such effects as healing and illusion. He doesn't mean that no magic exists in the world of Sword Art Online, just that there are no magic spells that players can use. As such, the existence of a sword classified as "magic" does not break this rule. Though since it has been noted that the magic sword may have just been translated wrong, I'll note a few other magic things in Sword Art Online: The floating castle, certain monsters, Silica's dragon, and the revival item may all be classified as magic.

There is indeed no magic in Sword Art Online.
In your question, you're misunderstanding something important. Lizbeth doesn't say that.
She says that, "out of all monsters drops, this sword is good enough to be considered in a maken (魔剣 cursed sword) class." which is like saying the sword is in a class of its own. She doesn't say anything about magic.

Must be some sort of translation confusion then. Lizbeth says that in SAO english dub.

yeah, I have both versions right here. you're correct

Rather than Cursed, I would say "Demonic". Ultimately, "Demon" and "Magic" are effectively the same word in Japanese, unfortunately, and you have to make out which is which by context, or other paired words.


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Was Croix and his party the only ones to enter Frelia's Binary Field?
In Ar Tonelico 2: Melody of Metafalica in the final episode of Frelia Binary Field when Miwa and Miora face off it appears Miora calls Miwa Mir

Miora: Hey! Mir! That's not fair! you didn't convert this story again, did you?
Miwa: Hehehe... Who knows.
Miwa: Talking Trash, I found some nostalgic data. why don't i input it into my system?
Miora: what are you up to!?
Miwa: Hehehe... you'll cry out og nostalgia, too. Now, let's go

At this point the background becomes that of Shadow Mir. the final boss or Ar Tonelico: Melody of Elemia and Miora seems to recognize it.
it almost seems to me that Miora, who has the same image as that of Shurelia when Mir connected to Shurelia's tower with Raki, became Shurelia as she seems to be referencing what Mir did her Binary field in the first game when Lyner dove into her.
However when Mir suggested that they enter Frelia's Binary Field she said that only 4 would be diving into her, that would be Croix, Mir, Luca and Cloche.
So i am wondering, is Shurelia, Misha and Aurica diving into Frelia as well? if so how?

They aren't Diving into Frelia: Shurelia has free access to the Binary Field due to being the Tower Administrator, so she was merely playing along with Mir's game. But as for Aurica and Misha, they aren't actually there: what you saw there are replicas of them created from data copied from the Beta-6D SH Server where their Cosmosphere are located (according to the Garden of the Goddesses Visual Book).
Also, their proper names are Miu and Leila (the latter being another reference to AT1's Binary Field), so NISA failed once again with the names.

is Miu and Leila supposed to be the names Shurelia and Mir went in the Binary Field?

Yes, and Miu is frequently used as her name in all out-of-game material where she is in the Binary Field, and she even used it as her alias when she invaded Aurica's and Misha's Cosmospheres in the Flash Cosmosphere games Gust put out sometime ago.
As for Leila, while the proper way of writing it would be "Reira", that's how her Binary Field name was written in AT1.


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Could Amaterasu be used without a sharingan by sealing it like Jiraiya did?
This question made me wonder: if you happened to have a scroll with Amaterasu sealed inside, could the seal on this scroll be released thus allowing you to use or spread Amaterasu without having a sharingan?

Such a technique was never used in both anime and manga. However, judging from the way the sealing technique works, I suppose it can be used that way. The evidence for this is Tenten's usage of weaponries.
Tenten stores her weapons in a scroll by putting the said weapons on the open scroll and use a jutsu to seal it into the scroll.
Jiraiya stores the Amaterasu into a scroll too as shown in the question you mentioned.
Thus, as long as you use it within 7 days after its sealing, you can use it as a weapon. Although, to be on the safe side, you better throw the scroll away from you before you release it.
It is not clear whether time passes when being sealed in a paper scroll, thus it is not guaranteed that the scroll will work after the 7 days expiration time of Amaterasu.

Can you add the source for the 7 days of time for Amaterasu? I thought they were eternal (Till the users mangekyou deactivated)

It was mentioned in the question the asker referred to.


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Are any animation studios open to the public for tours?
There are lots of anime fans all over the world, and Japan does promote the industry to boost tourism.
However, I am unaware of any animation studios that allow visitors. I'm sure a lot of visitors would like to peek inside and see what it is like - perhaps not the working areas, but the general surrounds & going-ons.
I have noticed one tour group doing such a trip - but for the traveller who goes without a guide group - are there any options?

It's not necessarily animation, but there's a studio park in Kyoto themed like the old dramas you can find on TV, it's also the set where some of them are filmed. You can change to wooden slippers and kimono on entrance and you can find random sword fights happening by walking around.

I was there with my college Japanese class a few years ago and we got a tour of a Production IG studio. Everyone was super nice and it wasn't touristy. We also got some random swag (manga, phone cases, pins, glasses cloths, phone charms, etc.).
Our professor did all of the planning, so I'm not really sure how you go about getting that set up unfortunately. Still something to look into though.
Side note, I think it might have also been around a bunch of sake breweries that had some cool tours (and samples).

Studio Ghibli museum
The Studio Ghibli museum in Tokyo is open to public tour, for me and probably for other regions too, you have to book three months in advance to purchase tickets.

I am sorry, but the 3 months story is not universally valid. I've been there (July 2009) and I bought the tickets 2 days in advance.

Tickets become available 3 months beforehand, but depending on when you visit you may have more or less luck booking in closer to the date.

Kyoto animation has a shop just below one of its working areas.  You don't even have to make an appointment to visit it!  It used to offer a dedicated tour which allowed visitors to look at animators paint transparent plastic film but it was sadly discontinued.  The store has items related its characters and even a detailed booklet on how they make animated movies.

If you go to the Studio Ghibli Museum you can see a couple of films that Hayao Miyazaki made exclusively for the museum itself. He also sometimes stops by and is a gentle and well spoken man. My friend met him once when he was vacationing there with his wife, so if I ever get the chance I would love to go there myself! ♥


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What is "digi-paint"?
I was reading some reviews of this season's new shows, and I somehow happened to run across references to "digi-paint" twice(!):

The raw mechanics of producing anime can be a pretty frustrating thing sometimes. Back in the early 00s, technology shifts prompted the move to digipaint from traditional cells, and early adopters of the new system suffered heavily for it. Shows like Haibane Renmei had fundamentally gorgeous art design, but looked smudged and indistinct due to the new technology. (from BBK/BRNK - The Winter 2016 Anime Preview Guide)
So this is a forgotten digi-paint show that was dug up in a time capsule from no later than the year of our lord 2002, dusted off, reformatted into 16:9, and re-sold as an adaptation of a Masamune Shirow manga from 2010. How else do you explain its hideous color palette, jagged flat designs, and painfully dated obsession with fetishes of yesteryear like catgirls, maids, androids/cyborgs with unusually sexual hardware, and busty scientist onee-samas? (from Pandora in the Crimson Shell: Ghost Urn - The Winter 2016 Anime Preview Guide)

I "get" what they're talking about: that sort of crappy look that post-cel early-2000s shows almost invariably have. But I'm not sure what digi-paint actually is. Aside from another post on ANN that refers to (but does not describe) digi-paint, I haven't managed to google up anything relevant.
What is digi-paint? When did it come into use (was it immediately post-cel?), and what is used nowadays instead?

I have a general idea of what digipaint is, but I couldn't find a lot of the sources that gave me this idea since it was mostly stuff I just picked up in passing. I did find one blog that went over the process and more or less confirmed what I had thought; scroll way down to 'Compositing / "filming"' to see where they discuss it.
This is the gist. Up until about 1999–2000, anime was created by drawing line art on a clear plastic cel, then hand-painting that cel, with a brush. Characters and backgrounds were drawn on separate cels; character cels were placed on top of background cels and the animators would take pictures of each frame, stringing them together into a film.
Sometime around 2000, animators started coloring the line art using a computer. This is basically similar to making art in Photoshop, though according to the blog they use a program called RETAS! Pro. Backgrounds can easily be drawn separately and added later on a computer; if you've ever used Photoshop, you know how easy it would be to draw a character and a background as separate images and combine them later as layers of a single image. The filming process also started to be done on a computer; the animators create the frames digitally based on the line art, then use the computer to string the frames together into a "film".
Digipaint refers to this process of coloring a cel on a computer with a program instead of by hand with a brush and paint. The blog and this other one discuss some of the effects the new process had on the anime industry: since it was faster and easier to color frames and composite character and background art on a computer, shows could have more frames, which led to smoother animation that wasn't reused nearly as often. It was easier to add fine details, so character art became more detailed. (I assume this was because of zooming and the precision of a graphics tablet, plus the ability to undo mistakes.) It was also easy to add in 3D computer graphics, so things like special effects and machinery, which are much easier to create with CG than hand drawing, started to be done in 3D.
On the other hand, it took a while for animators and art directors to get used to the different character of digipaint compared to traditional paint, which led to the ugly color palettes, blurriness, and flatness that you see in a lot of early digipaint shows (from 1999–2004 or so). These problems are especially noticeable in some of the lower budget hentai from this era, where characters and background art look like they exist on two separate 2D planes rather than in a single 3D space, making the animation resemble a paper cutout puppet show.
As far as I can tell, digipaint is still commonly used today; animators have just gotten a lot better at using it. Last Exile is another show from the early era that I remembered looking a lot better than it did. Like Haibane Renmei, it was a show with amazing, imaginative visuals that ended up looking like hell because of a hideous color palette, rampant blurriness, and primitive CG integrated poorly with the 2D animation. I haven't watched Fam: The Silver Wing, but it would surprise me if it didn't look much better than the original.
Some shows have moved towards cel-shaded 3D animation. This is a technique where everything in the show is created in 3D CG, but through the use of filters and such, it almost kinda sorta ends up looking like traditional 2D animation. Cel-shaded 3D has been around for a while in video games, but it's just now in its early days for anime and suffering from problems just like early digipaint. However, it will probably end up replacing digipaint, since it's cheaper (just render a 3D model from different angles. It's almost like having actors again!) and getting better all the time. (Cf. Arpeggio of Blue Steel.)

Digital painting is a method of creating an art object (painting) digitally and/or a technique for making digital art in the computer. As a method of creating an art object, it adapts traditional painting medium such as acrylic paint, oils, ink, watercolor, etc. and applies the pigment to traditional carriers, such as woven canvas cloth, paper, polyester etc. by means of computer software driving industrial robotic or office machinery (printers). As a technique, it refers to a computer graphics software program that uses a virtual canvas and virtual painting box of brushes, colors and other supplies. The virtual box contains many instruments that do not exist outside the computer, and which give a digital artwork a different look and feel from an artwork that is made the traditional way.

from https://en.wikipedia.org/wiki/Digital_painting

This only partially answers the question. In the future if you want to copy something word for word from elsewhere, please make an attempt to reference that source.


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What is the equivalent of "seme" and "uke" in yuri culture?
As mentioned in this answer, the terms seme and uke are used in yaoi to describe a duality:

Yaoi fans have adapted these terms to describe the roles in a male/male relationship: the seme is the one who takes the traditional male role: initiates the relationship, "pursues" the uke and is usually "on top" during sex. This can get ridiculously codified and outright heteronormative, e.g. the seme has to be taller and stronger, not show their emotions, etc. The "uke ends up winning" aspect may or may not be relevant.

If there is an equivalent to this kind of relationship in yuri manga and animation, what is it called?

If you use "uke" and "seme" to describe particpants in yuri relationships, I imagine you'll be understood, but it'd be very weird - male homosexual relationships and female homosexual relationships are conceptualized quite differently from one another in Japan, and uke/seme is only an element of the former. I don't think Memor-X's answer quite gets at this.

Here is a basic (and oversimplified) sketch of how homosexuality is conceptualized: in a relationship between two men, one of them needs to "be the woman". Hence, we have this deep dichotomy between "uke" ("the woman") and "seme" ("the man"). On the other hand, in a relationship between two women, there is no need for one of them to "be the man" - and so the uke/seme distinction does not arise as obviously. Indeed, there's this notion called リバ (~"riba", from "reversible") to describe a lesbian who is fluid with respect to her role in a sexual situation; I'm not aware of an equivalent term for men.
Why is there this asymmetry? The reasons are probably myriad; one obvious one derives from how penetrative sex works - one party must "attack" ("seme") and the other party must "receive" ("uke") - and penetrative sex is obviously more commonly an element of male homosexual relationships than female ones. In this respect, Euro-American and Japanese notions of male homosexuality are not entirely dissimilar.
But anyway, whatever the reason, the fact of the matter is that uke/seme terminology is by far more entrenched in the male homosexual community than the female homosexual community. And this distinction percolates from actual homosexual communities to the communities of people who consume media about homosexuality (yaoi/yuri). The Japanese-proficient reader may like to note the following:

The Japanese Wikipedia article on yuri does not reference the notion of "uke" or "seme".
dic.pixiv's article on yuri has explicit commentary about the ordering of names in a pairing (consider "MadoHomu" vs. "HomuMado") having nothing to do with uke/seme. (dic.pixiv is obviously not a "reliable source" in the WP:IRS sense, but I'd say it is reflective of the views and concerns of the community of people who consume yuri media.)
The glossary on the website of the "Lesbian Girls Club" in Osaka (with the wonderful domain name "lesbian.jp") only uses "uke" and "seme" as part of comparisons to related notions specific to lesbianism, like "tachi" and "neko" (as noted in makihige's answer).
But, things like dic.pixiv and other websites for fans of yuri media generally do not use the terms "tachi" and "neko". For reasons that are unclear to me, these terms, unlike "uke" and "seme", do not seem to have percolated from the lesbian community to fans of yuri media.

The basic takeaways are these:

Using "uke" and "seme" for female-female relationships is weird and not generally done.
That particular dichotomy is not really even a thing in the Japanese conception of lesbianism, though other dichotomies, like "tachi"/"neko", are things.
Consequently, in yuri media, "uke" and "seme" are, again, not really used.
However, "tachi" and "neko" are not really used by fans of yuri media either.

And so, the answer to OP's title question is basically this: not only is there not a one-to-one equivalent to "uke"/"seme"; there isn't even really any terminology at all that's used to dichotomize relationships in yuri media. Them's the breaks.

I would like to affirm your statement regarding リバ (~"riba", from "reversible") by saying that this here is one of the wonders of yuri. Although you could say that there is 'a man' in a yuri relationship, this roles can be easily reversed when 'the woman' takes the lead. I've seen this happen many times before. And then that reversal could happen anytime.

Terms arise from the need to describe something. And so that's why the term uke and seme arose from yaoi, However there is no need for that term in yuri because yuri is easily reversible.

On Wikipedia disambiguation page for "Seme" one of the suggested usages of the term is:

Seme, a manga/anime term for a dominant partner in a homosexual relationship

The first paragraph of that "seme" link says:

The two participants in a yaoi relationship (and to a lesser extent in yuri) are often referred to as seme ("top") and uke ("bottom").

Now given that the first page only says homosexsual and according to Wikipedia

Homosexuality (from Ancient Greek ὁμός, meaning "same", and Latin sexus, meaning "sex") is romantic attraction, sexual attraction or sexual behavior between members of the same sex or gender.

Since, shoujo ai/yuri involves lesbian relationships which are romantic attraction, sexual attraction or sexual behavior between two females, the terms probably are the same in shoujo ai/yuri.
Funny enough if we look at the "Yuri" page on Wikipedia, it's a disambiguation page unlike the "Yaoi" page that I linked to and the yuri genre pages are nowhere nearly as fleshed out as the yaoi page (and there is no yaoi (genre) page either). Given that seme and uke are fan terms one might assume that yaoi fans wanted clear terms to describe who the dominant partner in the relationship is. This is something yuri fans do not have much need for: in my view, there is no set dominant partner in shoujo ai/yuri. Rather that role can switch very easily between the members of the relationship.

The female equivalent term for seme/butch/top/dominant is "tachi", while the one for uke/femme/bottom/submissive is "neko". (Reference: Emerging Lesbian Voices from Japan.)
I'm not sure if the usage is as prevalent among fans and makers of the yuri genre as "seme" and "uke" are for yaoi fans, since I neither socialize with them nor read any fandom meta.

+1 I have read 'tachi' in academic literature at least, although not in common usage


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What is the purpose of Zero's tattoo?
I've watched the Vampire Knight anime and noticed that Zero has this tattoo on his neck. See below.

In one of the episodes Yuki is given a bracelet that is meant to have a spell on it and told the bracelet can be used to stop Zero. The headmaster holds the bracelet up to Zero's tattoo to show what it does. It appears as if it temporarily paralyses him. The bracelet looks as if it has the same symbol on it as Zero's tattoo.

Was there no purpose to it previously? Or did it have a different purpose?
In another episode when he is struggling with his blood lust the tattoo appears to have changed and got bigger and has veins coming out of it.
This left me wondering: What is the main purpose behind it? Or is there actually no purpose at all.

I can't find a better image of the bracelet that is from the anime however, here is a link to the cosplay version of it.

Zero's Tatoo is ment to repress his urge to drink blood and hopefully delay his decent into a Level E

Zero bears a tattoo, the Hunter's Seal, on the left side of his neck originally used to suppress his vampire side, and later used to tame him.

Soruce: Zero Kiryu - Appearance
you'll notice that the tattoo is on the same side of the neck Zero was clawing at when he was first brought to the Cross Residence as a child after his family was killed. this is also the same place Shizuka Hio bit him (the reason why he was clawing at his neck)
The Wikia page on the tattoo also goes into depth about it

The hunter tattoo has multiple purposes. The tattoo is of the Hunter symbol, which bears similarity to the Cross Academy logo. It can be used to slow the awakening of a human into a vampire, as Kaien Cross advised Zero Kiryu. Zero was able to delay his awakening for four years with its assistance, although he believed it would prevent it.
The primary purpose of such a tattoo is for the taming ceremony. The tattoo is linked via a matching piece of jewellery with a crest of the same symbol on it.
The tattoo can be on various parts of the body, most likely to be at the point where the human was bitten, as this is where Zero has his.The tattoo hurt him because of the vampire who bit Zero.
When Zero thirsts for or drinks blood, the tattoo branches out in the fashion of veins, or it makes Zero's veins glow.

so the Tattoo and the Bracelet Yuki has have the same symbol because

they are meant to be linked
they are both products of the Vampire Hunters thus they bare their symbol

after the "taming ceremony" (where Zero's blood was dropped on the bracelet and paired with the tattoo) Yuki is supposed to to disable Zero when he tries to go after someone's blood but alot of the time we see Yuki allow Zero to drink her blood

Your answer explains so much. Thank you very much