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Conditions to obtain Eternal Mangekyo Sharingan
I was reading this answer and it got me thinking, how did Sasuke obtain the EMS if Itachi's eyes were in worse condition than his? Itachi's eyes were losing their light, and they weren't in "good" state to be considered a good replacement. How did they heal when they got transplanted?

Firstly, by attaining the Eternal Mangekyō Sharingan through transplantation of eyes (of a blood relative, ideally a sibling's), the following upgrades are received by the user:

Deteriorating vision is restored.
Their Mangekyō-based abilities are made stronger and they no longer suffer any negative side-effects from the usage.
The user will retain all their previous techniques from their original eyes.
The user will be able to access the Mangekyō abilities of the donor.

So what basically happens is that, the eyes taken from a sibling get a new host and whatever drastic conditions (related to vision) the donor had gone through while they had the eyes, doesn't affect the new host.
In Sasuke's case, his vision was deteriorating, so he decided to transplant his brother's eyes, which were in a similar condition. When the transplantation is completed, he is able to see clearly and moreover, get an increase in his dojutsu skills. This clearly proves that the precious condition of the eyes doesn't reflect to the new owner. There is no other case to prove otherwise.
Reference: http://naruto.wikia.com/wiki/Mangekyō_Sharingan

The person getting the eyes transplanted cannot access the abilities of the donor. This only applies to non-Uchiha, which cannot awaken EMS, thus get the abilities of the original eye owner. This is shown with Danzo (Kotoamatsukami) and Kakashi (Kamui).

So far only two people have been shown with an EMS, Madara and Sasuke. We don't know what Madara's brother's powers were, but we know about Itachi's. Itachi could use Tsukiyomi and Amaterasu. Sasuke, after gaining the EMS, displayed high proficiency with Amaterasu, and he was able to use Tsukuyomi like techniques on Killer B.

But Sasuke had Amaterasu in one eye, and Kagatsuchi in the other. That leaves no space for Tsukuyomi, no?

It's not explicitly stated anywhere that an EMS can't have more than two techniques. So, I guess only Kishimoto can answer this properly?

Most likely. But nowadays all the solutions to his problems are Hashirama cells, so I doubt this'll be mentioned by him..

And Sasuke fought B with a regular MS


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How did Hiruzen Sarutobi summon Enma when he was a reanimation?
In the Fourth Great Ninja War, when Obito makes the Ten-Tails transform the into God Tree that devoured the chakra of all the shinobi it touched (or its branches), where you will see Sarutobi Hiruzen cutting/destroying the branches of the Ten-Tails' tree form, and he does that with the help of Enma's transformation - Adamantine Staff.
When Sandaime Hokage is summoned using the  "Impure World Reincarnation", you aren't supposed to have any blood in you to summon Enma.

So, now if you check the naruto wiki, to summon a contract animal, first of all we would need to have a blood contract with the summoning animal, Afterwards they only need to offer an additional donation of blood on the hand they signed the contract with, mould their chakra with hand seals and then plant the hand they signed the contract with at the location they wish to summon the creature.
http://naruto.wikia.com/wiki/Summoning_Technique
So, was it a flaw to show Sandaime Hokage with Adamantine Staff or is there any other technique this is used to summon a contract animal.
Or was this explained in Manga..

I can recall two instances where Shinobi who are under the influence of Impure World Reincarnation are shown to bleed while when performing a justu that requires blood or causes them to bleed.
While those reincarnated by Impure World Reincarnation do not bleed, it would appear reincarnated Shinobi do bleed as long as the injury is self applied (speculative and don't have a reference, somebody correct me if I am wrong on this).
The first instance is the Summoning Justu

Reincarnated bodies do not bleed, except in those cases where blood is needed to perform the Summoning Technique

This is in reference to Naruto Chapter 548, when we see the reincarnated 2nd Mizukage biting his thumb to perform the Summoning Justu against the Allied Shinobi Forces

The second instance is using the Mangekyou Sharingan

Other side-effects may still manifest, as when Itachi Uchiha's eyes bleed from using his Mangekyō Sharingan, but he is not inhibited by it.

This is in reference to Naruto Chapter 550, when Naruto and Killer B are fighting against the reincarnated Nagato and Itachi. Itachi uses the Mangekyō Sharingan, causing his eyes to bleed

Yeah, I guess that makes sense...

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Can a user be hurt by his own chakra?
In the Naruto world, is it possible to get hurt directly by your own chakra? For example, Naruto's Rasengan is a manifestation of his chakra, so is Sasuke's Chidori, and Itachi's Fire Style jutsu. If Naruto were to accidentally hit himself with his own Rasengan, would it affect him the same way it would if he used it on someone else? Because it's his own chakra, would his body just absorb it? Same goes for Sasuke's Chidori and Fire Style jutsu. If Itachi blew a fireball into the wind and it came back and hit him, would he be hurt by it?

Deidara puts chakra in his clay for it to explode. When he blew himself up, he died. Hence it's possible.

In the Fourth Shinobi War, we discover that you can get hurt by your own chakra.
The best example is Naruto versus the Third Raikage.

Another example is the Rasenshuriken. Before Naruto learns to throw it, Tsunade classifies it as a Kinjutsu (Forbidden) Justu as it damages Naruto's arm on a cellular level. If he was immune to the justu, this would not be case

To strike a finer point on this, one can be hurt by their own moulded or effectively weaponized chakra.  It isn't the case that we've seen unmoulded or non-weaponized chakra harm the originator.
It's important to note that chakra wasn't initially weaponized.  Ninshu, the precursor to ninjitsu, was originally meant to spread energies and thoughts between others, and to allow people to live in relative peace.
As an example, Naruto's Rasenshuriken when used as a normal Rasengan actively damaged his body to the point that Tsunade wished it classified as a forbidden jutsu to prevent irreparable damage to him.
Another instance would be fully opening all Eight Gates.  In this context the chakra is being expelled from one's body to the degree that it is taking significant physical damage.  Might Guy opened all eight, and due to that fact (and the fact that normally one would die from that, but he was saved by Naruto), he's wheelchair bound and unable to be a ninja.  Lesser damage has been incurred by Rock Lee when he's opened up fewer gates, and has ended up in the hospital due to its side effects*.
The main effects of using the Eight Gates would also be damage to one's bones, but those are a direct result of taijutsu, and not necessarily the chakra.

Isn't the problem with the eighth gate that you can't close it again? Maybe I missed it but I thought you die from losing all your chakra.

Any form of physical chakra can damage anyone, even the one who produced it. When Tsunade challenges Naruto to master the Rasengan in part 1, Naruto's hands are severely injured.... that's one of many examples of self chakra injury.
Also are we forgetting the fact that Itachi used his own crow Kotoamatsukami to place genjutsu on himself when he was in Edo Tensei? So not only physical but mental as well.

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Why did Madara use Wood Clones to manifest Susano'o while fighting the 5 Kage instead of Shadow Clones?
Was it because:

Shadow Clones can't perform Susano'o, but Wood Clones can?

Wood Clones are stronger/better than Shadow Clones?

Madara couldn't perform the Shadow Clone Technique?

Of any other reason not mentioned above?

I think the answer is Madara wanted to test out some jutsu mainly hashiram's it's the only reason he used them because 1. Shadow clones perform any jutsu user know ex:- Naruto rasengan 2 . Madara might know about shadow clone because tobiram can perform it & we know Madara has a sharingan 3 . I think wood clone isn't different than a shadow clone but maybe small difference in endurance.

In the wiki, it is mentioned that

Wood Clone Technique, unlike other clone techniques, do not disappear when hit and it is able to take damage to a certain degree. 'This, according to Madara Uchiha, makes it the perfect clone technique that only he with his dōjutsu was able to see through.' This happened in Chapter 577.

This was most likely the reason why he preferred using wood clones. The two other possibilities you mentioned above are not possible and here are the reasons:

The first possibility is wrong since both Shadow Clones and Wood Clones can perform jutsu.
The third possibility is wrong since Madara Uchiha is listed as one of the Shadow Clone users. He even used it to fake his death.


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How did Madara pull the Meteor stunt?
During the 4th Great Ninja War, Madara caused a supersized meteor to fall on the entire battlefield.

How was this possible? The wiki states that he summoned a meteorite, but that can't be true, he never weaved any signs for summoning, or at least the Susanoo's hand seal does not resemble the ones for summoning.

Can anyone clarify how this happened? Is this a Susano'o-only Jutsu? Or is it more like Madara's Sharingan ocular power?

He did handsign, 3 handsigns to be precise. Madara himself did 1 handsign, and then his four-armed Susanoo did 2 handsigns to perform this technique

It's a Rinnegan summoning technique.He used his Sussano for the hand seals.

ooh wow thats true @Albert he actual did a handseal along with his Susanooo. But then that doesn't add up. The Rinnengan can use the power of the animal path to summon weird  beasts which also possess the rinnengan. However, how could madara suddenly summon a meteorite? On first glance i thought it was a planetary devastation but then it can't be since he didn't make it

@TheAnimeScientist My guess is that was something like a Universal Pull. He pulled meteorites from the outer space. He needed so much chakra to pull something from space, that's why he made his Susanoo did the handsigns too

While not named in the manga and anime, it was named in Naruto Shippuden: Ultimate Ninja Storm 3 as "Tengai Shinsei". Additionally, that's a meteor, not a meteorite.

@кяαzєя okay I didn't know the difference between meteor and meteorites, thx for the info. For the naming, we can argue that different name doesn't always mean different jutsu. Sasuke named his change-shaped-amaterasu as blaze release. My argument is that "Tengai Shinsei" is still a form of Universal Pull, pulling meteor from space.

@TheAnimeScientist another possibility: Tengai Shinsei was Madara's unique Mangekyou ability. Just like Tsukuyomi to Itachi, Kamui to Obito and Amaterasu to Itachi and Sasuke. They never mentioned about Madara's unique Mangekyou ability in canon resources, so, maybe ..

Don't talk about Sasuke having Amaterasu.Itachi implanted it in his eyes,I guess if Itachi hadn't done that he would probably be without any abilities like Madara

After all Madara and Sasuke were both similar Indra reincarnates.

He used the Rinnegan Deva path to pull the meteor out of space. The Deva path uses push and pull so you can push rocks from the earth to the sky making a black moon, meteor, or meteorite thing whatever. He then uses the pull part to crash it down making chibaku tensei. Maybe he pull the meteor towards earth but it would have destroyed his chakra if he did it so he used some of the susanoo chakra to pull of this stunt.

The susanoo is the manifestation of an Uchihas chakra I think. Not a separate entity

It is a sort of seperate energy not separate entity. Kind of like a tailed beast. The sharingan isn't part of the users energy, it's another energy that's  able to be passed down. I call it the law of Dojutsu. For all dojutsu. A different energy without a conscious so the uchiha takes over that energy. Madara needed to use the rinnegan to pull down that meteor. He decided that if he drew some sharingan energy from a susanoo and converted it along with the rinnegan and normal chakra, It will use less energy from each faction.. That is my hypothesis.

This dojutsu is rinnegan+ms ocular jutsu. During the fight,madara used rinnegan for shinsei tengai.Plus Hand seals are needed to perform this jutsu.It could be that Mangekyō is needed to perform hand seals.As stated above by other content providers, Rinnegan Deva path is required to pull the meteor out of space.

His susanoo also made handseals along with him.
Just like how Sasuke uses Susanoo: Chidori, He might have used a Susanoo amped Bansho Tenin (Rinngean Deva path Pull) which's range was extended to the outer atmosphere and pulled down a meteor.
Or there are theories that it might be his Mangekyou Sharingan ability.


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How could Mitsuki attain Sage Mode without training?
During the final test, Mitsuki was subconciously able to enter into Sage Mode without prior training at any of the Great Sage Lands.

How was this possible?

Orochimaru's experiment? Like, he somehow injected sage power to Mitsuki, and Mitsuki just unconsciously activated it?

the sage mode mitsuki entered is on a completely different level when compared to any other sage mode we've seen in Naruto (Even Kabutos) @Albert His sage mode seems more like a snakish Chakra mode than anything else and i don't think Orochimaru would have wanted to inject sage mode into his son? We all know that those who aren't compatible usually always die

@Rumpelstiltskin mitsuki was made to be a perfect being, thats another possibility. he had all memories of failure wiped and was created by the best in that specialty/area


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What causes the Susano'o morph into more advanced stages?
During Sasuke's "evil phase", the anime shows us his advancement along the different stages of the Susano'o. The most noticable thing is that Sasuke's Susano'o responds with his feelings, more like it feeds of his anger. During his fight with Danzo, Sasuke becomes really enraged at how Danzo talks about Itachi and his Susano'o starts developing flesh and its eyes light up. Later on in the fight, Sasuke screams and his Susano'o further develops an offensive weapon and even starts using arrows. (His Susano'o had 2 major powerups while he was against Danzo) [flesh and an offensive weapon]

During that moment, Obito even mentioned that "His hatred has matured and gained in power" (he says it a bit differently from how the manga does. Shippuden Episode 210).
So does this mean that the only way to advance the Susano'o is through negative emotions? I want to clarify this cause the Wiki doesn't explicitly state how the Susano'o morphs from bones to full clothed armor. The only Sharingan user that the anime really focuses on in terms of Susano'o development is Sasuke. So, its hard to actually generalize this concept of hatred feeding Susano'o for all Sharingan users. (I'm not sure if i missed something)

The hatred part was more of an exaggeration,which the Uchihas love to do(like Itachi and Obito).If that really was the case,how did Itachi become so powerful?He wasn't consumed by hatred.
Sasuke was only discovering and learning the powers of his Mangekyou Sharingan,which we know takes time.Although it is true that his negative emotions aka hatred forced him to use more chakra for his Sussano,thus giving him the complete "half" form.
After learning to activate this version,Sasuke never really needed to become that enraged before using it.
Most of the discoveries of the Mangekyou were by chance,just like Itachi did(Amaterasu Vs the fourth Mizukage)."Hatred" has nothing to do with it(only needed for activating the Mangekyou for the first time of course).


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What music is playing in season 3 episode 2, 10 minutes into the episode?
It's around the time when they are tasked with going through the forest and start showing of their quirks, starting with Shouji and Jirou saying "where the beasts are."

You're talking about that scene at 09:40
The OST is : Combat Training  (it comes from Season 1)
Here is a link : https://www.youtube.com/watch?v=oa9mT_sPkQA


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If Naruto loses the ability he used on Kakashi and Guy after Kaguya's seal, what did Sasuke lose?
In the episode of Naruto Shippuden where Naruto received the power from the Sage of the Six Paths, he did a lot of things, like saving Guy from the Eight Gates aftereffects, restoring Kakashi's eye, and extending the lifespan of Obito. He also mentioned to Sakura that he feels like he can do everything as of now.
Sasuke, I believe, received special Rinnegan.
After sealing Kaguya, the marks on both of their palms were gone. The same goes for Naruto's ability to do those things. I believe they should/must be equal in terms of power, so I came up with a question: what did Sasuke lose after Kaguya's seal?

My assumption would be that Naruto gained that ability in the hand he lost while Sasuke gained abilities in his eyes. Hence the reason Naruto could never fix his own arm even though  he could generate Kakashi's eyes

I'm up with an assumption. It's not really clear if Naruto lost his six paths ability, but if so, Sasuke also has some limitations on the usage of his rinnegan. His rinnegan has tomoes, and some state that it's a representation of it's charge. It doesn't seem to lose it's charge until he wields a no tomoe rinnegan in boruto series. So, his rinnegan must have lost it's ability to maintain it's charge.

Naruto did lose the seal and the power to magically heal others. Naruto basically has very little six paths chakra left and there is not enough to use to transform to it. This is why Naruto does not use it or the truthseeker orbs after the fight with Sasuke. In order to get six paths chakra mode, you need significant power of all the tailed beasts. Naruto only received very small portions of all of the tailed beasts' chakra. After the war, he used most of that chakra. The sage of six paths asked Naruto to keep a little bit of the tailed beasts' chakra so they can meet inside him. So Naruto can use six paths power, but he chooses not to because the sage of the six paths asked him to save a little bit of the tailed beasts' chakra inside him.
The power that Sasuke lost was not any abilities like Naruto, but his chakra reserves is what he lost. During the war, Sasuke could teleport many times and use the Onyx Chidori a couple of times with no expense to his fighting ability and not that much chakra used. In Boruto, Sasuke opened one portal and had his chakra completely exhausted. He did teleport once during the fight with Momoshiki, but he did not use chakra afterwords. In the war, Sasuke could use the Rinnegan abilities nonstop. But in Boruto, Sasuke can use the abilities once or twice and his chakra would be completely exhausted.
So to conclude, Naruto lost his power to heal, and Sasuke kept all of his abilities, but his chakra is drastically lower than when he was fighting in the war.


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Could Naruto have awakened the Sharingan or Byakugan?
I'm wondering if Naruto could have awakened the Sharingan or the Byakugan, since he was the reincarnation of Ashura Otsutsuki and Ashura's brother was of the Uchiha clan, and Ashura's father the Sage of Six Paths, who had a brother who was of the Hyuga which means Naruto is related to the Uchiha clan, the Senju clan, and the Hyuga clan.

The reincarnation of Ashura 'Hashirama' also didn't had byakugan, I believe direct blood line needs to be present for awakening such dojutsu

No, Naruto could not unlock neither the Sharingan nor the Byakugan. It doesn't matter whether he was a reincarnation of Ashura. As a matter of fact, Ashura himself didn't possess the Sharingan or Byakugan, despite the fact that his predecessors had different dojutsu. So, it is absolutely clear that Naruto can't use the Sharingan or Byakugan unless he transplants them from someone.


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If Itachi used Izanami on Kabuto, then how does his Mangekyou Sharingan work?
So reanimated Itachi used Izanami on Kabuto. He then uses Tsukuyomi later. How is this possible?

I have no clue how it works for a reincarnated shinobi, but I guess he used one of his eyes to use izanami and the other eye to use tsukuyomi.

It was Kotoamatsukami from Shisui's eyes he used initially if I'm correct to get rid of Kabuto's reincarnation control. Later he used Izanami on Kabuto.

I'll have to clarify a few things before I answer this question so it is completely answered.

First off, he used Kotoamatsukami via Shisui's eyes to stop the Edo Tensei influence Kabuto had on him, but Shisui's eyes were placed in a crow.
Secondly, Izanagi and Izanami can be used once in each eye, as shown with Madara.

The Izanami is an ocular genjutsu of the Sharingan, that is designed to trap an opponent without eyesight. It was developed to save and reprimand an Izanagi user, for they couldn't handle their power and eventually abused it during battles.

Both Izanagi and Izanami result in the loss of vision in one eye, until used by the other. Madara used Izanagi in one eye to come back to life after defeated by Hashirama Senju. This resulted in the loss of one eye, but his vision was then restored when he awakened the Rinnegan after implanting Hashirama's cells into himself with the intent of getting Wood Style.

As shown, only one eye turned white and the other Sharingan remained.
Itachi used Kotoamatsukami to stop Kabuto's influence on him with the Reanimation Jutsu, as it was set to activate once Naruto looked at Itachi's eyes, thinking that Sasuke would implant them. And Itachi had two Sharingan, meaning that Izanami would only blind him in one until he used it in the other eye as well. He then cast Tsukuyomi with the remaining eye, and thus could use it after using Izanami.

Itachi set up the Izanami preparation in Tsukuyomi mode, so if Kabuto will be trapped in the loop in Tsukuyomi as well.

Please include relevant sources/references. Specify specific anime episodes and manga chapters, if needed.


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How and why did the Tailed Beasts grow up?
From the start of the series, we saw the Tailed Beasts as large, vicious, and angry entities bound inside the bodies of their jinchuriki. They were shown to despise the humans who bound them and used their power for personal gain. But they weren't always like this.
Initially, they were shown as small and emotionally open towards the Sage of Six Paths. While I understand why they hate humans now, I don't understand why and how they grew larger from their small size to something equivalent to an 'adult size'?
They are now shown as a large mass of chakra. When they die, they reform. Also, as we have seen, when the Kyuubi was divided into two separate parts, his size was reduced. But that reduction in chakra didn't make him small again.
So can anyone explain:

How did the Tailed Beasts grow from chibi to adult size? (Do they grow up like normal animals?)
Also, do chibi Tailed Beasts have less power and chakra than their adult forms?

Re their size, it's been shown in both manga and anime series that the Tailed Beasts can change size, shape and appearance (to an extent) at will. Since they don't have physical bodies, their form is much more fluid than biological organisms. So the 'chibi' Beasts could simply be a form they liked to take around S6P, representing their feelings as being his 'children' of sorts

This would just be my best guess from reading the series thus far and also outside influences, but I think that the chakra which form the tailed beasts also have a psychic impression with which humans communicate and interact. This psychic impression, through experience, grows what we perceive as a personality and has its re/actions based on this.
The physical form (and perceived growth) they take on may also be due to human influence. As they have interacted with the species over time they have noted that these creatures grow old and die. Not only this, but they start from an infant form and, over time, change in height, temperament, and language ability.
Since the entire lives of the tailed beasts since the death of the Sage of the Six Paths is not detailed it is impossible to know when the tailed beasts saw different levels of maturity. I would also guess that this would have a human influence as well, but mostly from the jinchuuriki (human hosts) that the beasts dwelled within. As the hosts grew older and died this possibly reflected within how the beasts manifested themselves as they moved from host to host over the generations. It is also through seeing the lives of these human hosts and what their role in society was that contributed to their sour feelings towards the human species.
As for the chibi tailed beast having less power? If we consider all beings within this universe start out with no manual to their powers and not a lot of instruction we can also infer that the tailed beasts came into existence not knowing the extent of their power. I say "extent of their power" only because after the corruption of ninshu into ninjutsu that the techniques we think of as powers came about as a concept. The tailed beasts most likely have had the same chakra reserves as before but started life without the desire to use them as humans would.

this seems possible. but I'll wait for some other more fact based answer if there is any.


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Why did Kenjaku (Pseudo Geto) force Mahito not to use hostages to force a pact between Sukuna and Yuji?
In episode 12 of Jujutsu Kaisen, Yuji snapped after Junpei's death and punched Mahito. We see him contemplate that

"Yuji Itadori isn't concerned about his own life, but Geto forbade me
from forcing him to an external pact using hostages. So, if he has a
foe he hates so much he longs to kill them but still can't, he will
probably turn to Sukuna"

Now, why does Geto not want the use of hostages?

This is answered by Geto near the start of episode 14 "Kyoto Sister School Exchange Event—Group Battle 0—" (Transcription: "Kyōto Shimai-kō Kōryū-kai—Dantai-sen ⓪—"; Japanese: 京都姉妹校交流会—団体戦⓪—). Basically, a Binding Vow needs to be initiated of one's own volition. Externally pressuring someone into a pact does not count, and tricking someone into accepting a Binding Vow is extremely difficult. So, it would be a waste of effort to try and force Itadori into a Binding Vow with Sukuna by taking a hostage.
This is the conversation between Mahito and Geto in episode 14:

Mahito: The game started when I met my new toy, but it didn't go well. It wasn't bad at first, though. I should have taken the toy hostage, and forced Itadori to make a Binding Vow.

Mahito (speaking to Itadori in his imagination, while holding Junpei hostage): If you don't want him to die, hand over your body to Sukuna.

Geto: No, a Binding Vow can only be done by himself. It's not that simple to initiate a Binding Vow through intervention.

It is interesting to compare this with how Sukuna manages to get Itadori to accept a Binding Vow as per Sukuna's conditions in episode 6 "After Rain"
(Transcription: "Ugo"; Japanese: 雨後). Sukuna obviously understands that he needs Itadori to agree to it of his own free will, and he manages to get Itadori to do so by adding a small additional condition: if Itadori defeats him in a battle, then Sukuna will revive him unconditionally; else Sukuna will revive him as per the conditions of his Binding Vow. Goof that he is, Itadori promptly agrees to this, and is just as promptly defeated.


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What is the first piano song Kousei plays in the Your Lie in April live-action movie?
What is the first piano song Kousei plays in the Your Lie in April live-action movie? It was played during the first minute of the movie, from 0:00:20 up to 0:01:13.

The song is called Kimi no Sekai. The tempo played during that scene is about 25% faster than the original.


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What's the ost that starts playing at 7:20 episode 7 in MHA Season 5?
What's the ost that starts playing at 7:20 episode 7 in MHA Season 5 ?
the song that starts with moori moori moori

Welcome to Anime & Manga! Please include a YouTube video link to the said episode (which includes the song, of course) in order to make things easier/more efficient for people trying to answer your question.

Its 騎馬戦 of 林ゆうき (yuki Hayashi)


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Can't Kakashi take Obito's Sharingan, and Sasuke take Madara's Rinnegan?
How come Kakashi doesn’t take Obito's eyes since Obito dies toward the end of the war? Also, later in Boruto, Sasuke loses his left eye. Is it possible he can take Madara's Rinnegan since he was fully revived? Sasuke should be able to locate Madara's body assuming the Leaf buried all of the dead shinobi after the war.

Obito died by disintegration, so there’s no chance for Kakashi to obtain his Sharingan. In fact, it was quite a big deal for Obito’s soul to briefly inhabit Kakashi’s body and give him both his Sharingan in order to assist in defeating Kaguya.
I think it’s also safe to assume that Madara’s Rinnegan are no longer viable considering the amount of time he’s been dead (even if it is true that Madara’s body exists somewhere and is accessible by Sasuke).
But that aside, neither Kakashi nor Sasuke have shown any inclination since the War to actively seek out powerful jutsu, whether ocular or otherwise.

Initially I thought of putting a comment but it was getting too long, so I'll put an answer.

In Boruto, Sasuke did lose his Rinnegan and but locating Madara and taking his Rinnegan is not feasible because if you remember towards the end of Ninja War, Madara turned into Kaguya Otsutsuki who was sealed by Naruto and Sasuke. The ten tails was split and so was Madara's body. After taking so much toll on his body, having being turned into Kaguya with his body handling so much power and then getting all ten tails removed, the body was rendered useless and so was his rinnegan (if you notice the last moments of Madara, there was no Rinnegan). It was not shown what happened to Madara's body after his death. Did Hagoromo took his body after all were summoned in the real world?

So, How can Sasuke get a eye (or if possible a Rinnegan)?

Let's look at the ways:

Amado: Amado is an amazing scientist and can also create Dojutsu. Amado created a special pair of eyes for Delta, which could absorb and release ninjutsu. This Otsutsukis have shown similar abilities, maybe they were the inspiration for the eye. Amado could potentially create a good Dojutsu for Sasuke to use; for which he could take a sample of Kawaki and Boruto’s DNA as both of them have Otsutuski genes mixed with theirs. This could help him to create a better dojutsu or maybe create an artificial Rinnegan.
Shin Uchiha: Shin Uchiha was a test subject of Orochimaru, who grew to praise the Uchihas, especially Itachi Uchiha. He has multiple pairs of Sharingan, so there’s a possibility that Sasuke could use one of them. A wild guess in both of these possibilities could be that Sasuke uses one of Shin Uchiha’s eyes. Or, a Sharingan from the Laboratory to use the Izanagi, preserving his Sharingan in the process.
Obito’s laboratory: Obito has a secret laboratory with multiple pairs of Sharingans. Sasuke could use one of the Sharingan preserved in the lab.
Sakura's healing ability: Sakura can be of help at healing any damages.

There was also one other method: Naruto's Yin-Yang release which he received from Hagoromo Otsutsuki to heal Kakashi’s eye in Naruto Shippuden but since Kurama died, this won't work.

Does Sasuke even need Rinnegan?

Although, getting Rinnegan means attaining godly powers, it is not necessary that Sasuke have to have Rinnegan. Don't forget the fundamental powers of Uchiha, the Sharingan. Sasuke was too powerful before even getting the Rinnegan. Sasuke currently has access to his Susanoo, genjutsu, all forms of Chidori, Fire and Lightning release and other signature jutsu. Now the question is since he has Sharingan, can he still get the Rinnegan powers?
In the words of Tobirama:

the root of Uchiha’s powers is their love, greater than anyone else’s. But when they lose someone they love, their love is changed into hate. And this emotion of theirs is reflected by their eyes. That’s the reason it is called "the eye that reflects the heart."

This means that the powers and all the Uchiha abilities come from within a Shinobi’s blood (Kekkei Genkai). The eyes are nothing but the projectors for that power. In this case, Sasuke has all the abilities of Rinnegan within him since he’s the direct descendant of Indra and thus Hagoromo; he just needs a tool to access it which will be Rinnegan eye.
But what I've heard in Boruto, Sasuke hasn't been on the spotlight as he is having a hard time with the bosses. Sasuke has been using space-time ninjutsu quite a lot lately which is very chakra-inducing and hence, he is getting tired and couldn't keep up with the enemy. This is putting him in a disadvantage. If he can get to his old fighting style and using his basic jutsu, without depending on godly powers, he might get good in the future.

Also, since Obito died, his Sharingan that was implanted to Kakashi got deactivated and hence his eyes returned normal.

Reference

https://www.epicdope.com/did-sasuke-lose-his-rinnegan-in-boruto-will-he-get-it-back/
https://animehunch.com/2021/01/26/boruto-can-sasuke-get-his-rinnegan-back/


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What does the black-and-white fish symbolize in the opening credits for 'Jujutsu Kaisen'?
The opening credits for Jujutsu Kaisen generally only feature scenes of the major characters who will appear in the forthcoming episodes. As far as I can tell, there is only one motif that actually recurs between the two OPs in season 1, which is that of a thin black and white fish.
Screenshots from the first OP:

Screenshot from the second OP:

What does this fish symbolize?
I tried searching for images of black and white fish, but I wasn't able to find any real fish that closely resembled the one pictured in these screenshots.
It's possible that the black and white pigmentation indicates that the fish is poisonous; if it is so, then my guess is that it's supposed to represent Ryomen Sukuna, since he's also known as the King of Deadly Poisons. I also get the vague feeling that it could have something to do with Yoshino Junpei, but I am unable to articulate why this would be so. Unfortunately, there's not much that I'm able to say beyond this.

I can't fully understand since I don't know the story...but there are several sites mentioning it (e.g. this). The fish is タテジマキンチャクダイ or Emperor angelfish. Seems like this fish swims into areas where it cannot survive, and as such symbolizes/predicts somebody's death.

And the behavior is called 死滅回遊, which is the name of something in the anime. I can't find the English equivalent (some suggests abortive migration?).

@sundowner Thanks for the info, that is interesting! Since my hypothesis about the fish being poisonous turned out to be incorrect, I'll just mention that I've often had a vague sense that it could also be related to the character Yoshino Junpei. From your info, it fits this character a bit better than Sukuna, since (in a way) Junpei does end up swimming into a new world (that of Jujutsu sorcery), with consequences that could indeed have been foreshadowed by the symbolism of the emperor angelfish.

In fact, I'm unable to locate a proper source for my claim that "black and white fish are generally poisonous", so it may very well be completely incorrect, based on something I misheard or misremembered. But I'll avoid removing it from the question since one answer already references the claim.

I was also wondering this, and also thought the fish could represent Sukuna or Junpei, but after watching the series over again, I've found that about 43-45 seconds into the opening it shows the black/white fist jump out at Yuuji and transfer into a part of Sukuna, specifically his mouth that opens from Yuuji's cheek. Which makes more sense as where the fish is in the water which his body is only partially emerged, maybe symbolizing how he has not fully taken over Yuuji's body, but he is lurking patiently until before the beat drop he jumps into his cheek:)

Excellent point! Thanks for this answer :)

Ofc! I was wondering the same thing so I'm glad your post urged me to look closer into it

According to a Tumblr post, it is the Pomacanthus imperator, or emperor angelfish. Contrary to what you have pointed out, a website states that:

General aquarium Angelfish are not poisonous. If you properly care for Angelfish, they can grow up to 6-8 inches in length.

The angelfish can represent the need for self-love. It might represent an internal struggle for self-care, but I won't pass a judgment since I am yet to watch the show or know any of the character struggles.


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Does Naruto ultimately find an answer to Nagato's question about how he will break the 'cycle of hatred'?
When Naruto meets Nagato after repelling Pain's attack on the Konoha Village, he is forced to admit to Nagato that he doesn't have an answer to how one can break the 'cycle of hatred' that plagues the shinobi world. Naruto is only able to promise Nagato that he will find a way to break the cycle, and he manages to change Nagato's perspective through his conviction.
But, does Naruto ever find an answer to how he can break the 'cycle of hatred'?

He does bring around many others towards his perspective as the series progresses, notably Kurama and Sasuke. He may even have stopped the 'cycle of reincarnation' of Hagoromo's sons, Indra and Ashura, through his final battle with Sasuke. But, how does this answer the question of how the 'cycle of hatred' can be broken, if at all?
While it is true that Black Zetsu has guided/manipulated the shinobi world for ages in order to serve his selfish needs, is the sealing of Black Zetsu (along with Kaguya) enough for the 'cycle of hatred' to have stopped? If so, how?

The 'cycle of hatred' is an essentially human problem, just raised through a fantastical story involving ninjas, chakra and mythical creatures. One doesn't really expect the author Masashi Kishimoto to "solve" such a problem in his manga. But any truly satisfactory answer found within the story should ideally also be an answer to the underlying human problem.
Notice that this is true for all the "partial/incomplete" answers found by Nagato, Hashirama, Madara, Sasuke, and Hagoromo. Regardless of whether one agrees or disagrees with any of their answers, it still makes them compelling.
So, is there a "final" answer that is found by Naruto in the same vein?

Towards the end of Naruto, all the shinobi found a common enemy (Madara) and allied together. The series had a message about understanding each other, and how understanding each other can stop wars.
So the closest thing to an answer you could say was understanding and connecting everyone together through communication and other means (which happened in the end thanks to Madara being a common enemy and everyone having to work together).
The thematic message of Naruto regarding this was if everyone understands that the other person also had their own reasons/tragedy/bears the same fate as them, the cycle can be broken.
Sasuke disagreed with Naruto, saying that the world always needs someone to shoulder its burden (like Itachi did) and draw hatred and everything towards themselves, preventing other conflicts.
Naruto was of the idea that instead of that, everyone can shoulder the burden together, and that he can connect the world together, and that there is no need to do it alone.
Pretty much the only one in Sasuke's way was Naruto (they were like the two strongest ninja alive by the end of the series, if Naruto dies, there aren't many that can touch Sasuke), and also his only connection left. Sasuke tried to fight and kill Naruto, but failed and ultimately managed to see how much Naruto really cared for him and how it's not wrong to have connections with people, and so was convinced.
Also this was also conveyed by how Naruo talked to his enemies a lot of times, and managed to have them understand him, instead of an end by sheer force, and how Naruto went from an isolated kid to someone people in the village and later on in the war recognized. How he shared his chakra to protect everyone. How Gaara used his sand to connect people in the war-gathering scene.
Naruto as a series overall has a strong thematic emphasis on "understanding each other".
I guess in our world, internet and mass communication evolution has managed to achieve a bit of an similar effect, though perhaps not completely, but this is a close parallel to compare to.


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When did Pucci reset the universe?
Does anyone know the specific date or time when Pucci reset the universe? Or anything similar like the month and year it happened?

No, because Pucci didn't reset the universe in a certain time. He sped up time so much that at some point, the amount of time to be sped up was infinite, and therefore he sped up time until there was no time left, bypassing infinity. He reset the universe outside the bounds of time.


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How many times have Pokémon actually died of old age?
I was wondering how many times Pokémon have died of old age.
There’s Stoutland from the anime, but that’s the only time there. In Lavender Town, in one of the retro Pokémon games, there are graves for Pokémon. There is also the Old Cemetery card, but it is unknown if this is for people, Pokémon, or both.

Kind of related: Do Pokemon age and die?


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In what order should I read the lights novels of 'Tokyo Ghoul'?
I've recently started reading the manga of Tokyo Ghoul and there were some terms like Kakugan, Kagune etc. and some characters mentioned which are not told earlier by the manga.
I then found that there are light novels of Tokyo Ghoul which can help me understand the backstory of characters more clearly and the terms too.
So, in which order should I read the novels? And should I read the manga before or after reading the light novels?

The answer to the same question says that they are not particularly dependent on each other. You can start anywhere.


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Why does Rin die when her puppet tag is removed, but Obito doesn't?
We see Rin get struck by chidori in her chest in the same spot as Obito. So why does Rin die when Obito doesn't?

Obito survived because he made himself the 10-tails Jinchuriki shortly after being struck by Kakashi

Both Rin Nohara and Obito Uchiha, who were branded with this cursed seal, had it removed by Kakashi Hatake's Chidori and Lightning Cutter respectively, although Rin died while Obito survived by sealing the Ten-Tails into himself shortly after.
Source

As seen with other Jinchuriki, their tailed beasts provide them with healing abilities to survive wounds that would otherwise be fatal

rin had the 3 tails though.

@KalElReyes I'm not sure how that is relevant to this answer

you said that tailed beast heals them and i said she had the 3 tails which should of healed her


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Where this "box of swords" design comes from?
In a manga called Soul Eater, one of the characters - a fighter known as Mifune - is carrying a box of swords with himself.

A striking visual piece.
In a manga called "Attack on Titan" a similar yet substantially different device is used: a rectangular blade holder. (The characters use sword handles with replaceable blades; if a blade gets broken, they throw it away and get another one from the box).

While both devices are substantially different, they do appear to be similar in many ways. So I was wondering - were they inspired by something from an even earlier manga, or possibly a historical japanese device that actually existed?

The AoT blades seem to bear resemblance to snap-off utility knives (aka box cutters) with their very flat, rectangular shape and horizontal notches running across the blades. By that token the replacement blade boxes resemble the boxes replacement blades for utility knives come in (Google images "utility knife replacement blades" plenty of products resemble the AoT spare blade boxes)

@Gatchwar thanks! That's a good find. Thgis implies it's just a coincidence.

Not a proper answer but I did get around to reading Soul Eater and something to note is that Mifune's "box of swords" is an anime thing, it isn't in the manga. In the manga he just totes around a bunch of katanas tied together by their scabbards using caution tape (without the bin).

No idea why this was changed for the anime, if I had to hazard a guess it might just be animating a mass of scabbards jangling about or a long piece of caution tape with the words "keep out" repeatedly is more tedious than animating a box containing that mass of scabbards and a plain yellow band.


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From which chapter should I start reading the manga "How a Realist Hero Rebuilt the Kingdom"?
I have completed watching "How a Realist Hero Rebuilt the Kingdom", season 1. From which chapter should I start reading the manga to continue with the story?

I do not know the answer to your question, but you should know Season 1 is still airing.  It's second cour started three or four weeks ago, and Funimation aired episode 18 on 5 Feb 2022.


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Who are the computer scientists(?) referenced in The Orbital Children?
At 5:47 of episode 5 of The Orbital Children (Chikyuugai Shounen Shoujo), three people are shown when Nasa Houston claims that AI were created to be gods to humanity. On the left is Alan Turing, but who are the others?

My closest guesses so far are Richard Feynman and John von Neumann, but neither of them match exactly, and it seems like all of these portraits are referenced from specific photos.

I'm not very confident in this answer, but I've wasted too much time on failed reverse image searches to not at least share what I've found.
So, I think it's pretty clear that first person is Alan Turing, and this seems to be the referenced picture:

Found on Wikipedia.
For Richard Feynman, the second man, I've found this picture on Britannica:

The nose, eyebrows, and lines around the mouth match pretty well.
For John von Neumann, one of these pictures:

Found on Wikipedia and ft.com
The similarities in the eyes and ears make me think these are the same guy, even if the hair is quite different. I'm not sure how anime typically put these kinds of things in, but since even the Turing picture has differences, I'm guessing these are drawings based on the portraits.
I also looked through a lot of pictures of Charles Babbage, Claude Shannon, and John McCarthy, but gave up on finding any matches there.


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How much larger is Sage Centipede than Elder Centipede?
In Chapter 158 of the manga One Punch Man, it's mentioned that the number of limbs Sage Centipede has is 6666 in total. I was wondering whether the number of Elder Centipede's limbs was ever mentioned, to compare their sizes.
How much larger is Sage Centipede than Elder Centipede?


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How does Mitsuha not realise that she is in the future?
In the movie "Your Name" (Kimi no Na wa), we see Mitsuha waking up in Taki's body, but we later realise that she has been dead for three years. This means that she was waking up in future‑Taki's body, so Taki lives three years into her future.
So, how does she not realise that she is seeing into the future? The dates must be everywhere: she checks and logs stuff in his phone, surely she must have seen this.
And, if she has realised that she is seeing into the future, why doesn't she bother finding out about her town or anything? Because it's the future, surely she would want to know how Itomori looks three years into the future.

Does this answer your question? Was there any hint of the year before it is revealed?


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How come not all subjects of Ymir have royal (Fritz) blood?
All of today's Eldians have a common ancestor, Ymir. But in all Eldians there is also a royal bloodline, Fritz/Reiss. This royal bloodline came from King Fritz.  As far as we know, King Fritz and Ymir have three daughters. Thus, should not all Eldians be also descendent of King Fritz? This only makes sense if Ymir had kids with someone else, other than King Fritz, but that is not shown. What am I missing? Or is it a plot-hole?
To rephrase it.
We know Ymir only obeys commands of the royal family and that's why the Founding Titan can only be used by those of the royal family. But, if  all Eldians are her descendants, and she only had children with the royal King Fritz, all Eldians should be Fritz. But, that is not the case. Why?

All Subjects of Ymir are Eldians, but not all Eldians are Subjects of Ymir or Royal.
Technically, every subject of Ymir has Royal blood, but it is not enough to make an impact. Remember, King Fritz was just a human and his bloodline can be diluted to the point where Ymir does not recognize it and all subjects are connected through Paths so that can not be diluted. Only one of the 3 daughters was kept as the Queen of Eldia and kept the Royal Family bloodline as pure as possible (possibly through incest, IDK. Historia was not a result of incest so it is a bit confusing). The other 2 were used as breeding machines to create more subjects of Ymir, diluting the Royal blood immensely.

I'm going to go with the original poster and claim this as a plot hole.
Every Subject of Ymir should be able to trace their lineage directly back to Ymir and the first King Fritz. Incest isn't mentioned and Fritz's last wish for his daughters was to reproduce as much as possible to pass down the Titan's power. This would mean the daughters would need to take "lowborn" husbands to pass on the bloodline. Again, incest isn't mentioned, so Fritz's grandchildren would also take commoners as mates (male or female), so forth, and so on with every generation. With Fritz and Ymir as the progenitors for ALL subjects of Ymir and excluding incest (since it isn't mentioned), I can't think of a way for the royal bloodline to be so indistinguishable enough for the Founding Titan's power to be passed down only through a specific lineage.
For all intents and purposes, every Ymir Subject is as much of a cousin to the next and any Ymir Subject should (theoretically) be able to use the Founding Titan's power. Unless it's passed down through the male lineage, but Fritz didn't have any sons. Unless it's passed through the female lineage, but what would make a daughter from Sheena more apt to the Founding Titan's powers than a daughter from Maria, since they are both direct descendants from Ymir/Fritz? Unless it's passed down through the Fritz's ruling line of succession, but that's just through a naming convention to where, if that were the case, then the FT's power simply follows a named successor (and that's just silly).
Hmm, my last point may very well be the case of how the bloodline remains "distinctly Fritz" - in name only, I guess.

This question has been bugging me for weeks now.
And I am convinced that I found the answer. So, Maria, Rose and Sheena were pushed to reproduce to save the "powers" of Ymir right?
But there were only 9 Titan Powers.
So let's say each of them had 5 babies. That's 15 descendants of Ymir. But not all of them will be considered royal blood. I think only those who inherited the 9 titan powers will be dubbed to be royal at the time. Considering how Ymir the slave only became royal after gaining the titan powers.

Remember that Ymir/Founding Titan can change whatever they want with Ymir's Subject that includes everyone, and since one of them is the successor to the queen, then King Fritz can just make Ymir do it and change whatever it is on their body.
It's on season 4 where they discuss there was a plague and then Ymir changed the insides of Eldians and since then, everyone is immune to it, like the queen can literally make her newborns an animal or a superhuman and she may even be possible to her newborn to a titan without using spinal fluids.
Maybe that's why there are 7 titans? Maybe that's why some Founding Titan may have to make a little more but scared of a betrayal like she made those Colossal Titans for the wall. Maybe, a long time ago, there were more titans (maybe, just maybe, that could have happened) and maybe those 7 are the only survivors of the great titan war.

I'm going to refer back to my answer here.
The original Ymir exists inside of the Coordinate as a thinking entity. She is the one who is the gatekeeper to who is allowed to use the power of the Founding Titan. Due to her time as a slave and all the trauma she suffered in life, she was very loyal to King Fritz and did whatever he told her to do. This loyalty can be thought of as mental conditioning, brainwashing, or a fear of disobeying, but whatever the case, it was shown as a fact in the episode From You, 2000 Years Ago that she obeyed Fritz unconditionally.
This "loyalty" continued even after Ymir died and she was reduced to whatever she is inside the Coordinate. According to the wiki at least, it does indeed seem to be stated somewhere that everyone who can turn into a Titan is descended from Ymir. So, what's the distinction between those of royal blood and the regular Subjects of Ymir? We don't actually have to understand the distinction. All we have to know is that Ymir knows the difference. Perhaps the distinction is even nonsensical, but so long as Ymir believes there is a distinction, she will use it to decide whether to obey or not. She exists as a thinking entity, after all, and with her mind as broken as it is, it makes sense that it wouldn't make sense. Once you put a person in charge of deciding these things, rather than a force of nature which cannot err, all bets are off.
And this is just speculation now, but perhaps, as with the vow to renounce war, the choice for Ymir only to obey members of a certain lineage was something imposed on her some point after King Fritz. Or perhaps it was a sanity check for Ymir, because with so many descendants, she'd almost have to give precedence to some (though this particular theory might not hold much credence, given how time works vastly differently inside the Coordinate). There's been some suggestion that inbreeding of the royals may also have kept the royals more genetically similar to Ymir, which could be the case. Whatever the case, if the explanation makes sense to you, it might make sense to Ymir, and Ymir's the one deciding, so...
Getting back to my original theory, what exactly is the proof that Ymir is the one deciding who is royal and who isn't? It's the fact that she's able to change the rules!

 In the same episode, Eren Yeager is able to gain control of the Founding Titan. Sure, he has to play by the rules to get to the Coordinate and get an audience with Ymir, mainly by going through Zeke who has royal blood, but once there, he's actually able to convince Ymir to let him use the power. I forget exactly what Eren said to convince her (might check later and update this), but essentially he appeals to Ymir's desire to stop being a slave.

This is only my theory:
Based on what we see of Ymir's past, I believe it is safe to say that Ymir wasn't King Fritz's wife, but his concubine. The "royal blood" doesn't refer to all of the children King Fritz had but only those he had with his 'legal spouse'. In time these descendants (or at least some of them) had children with the 'Subjects of Ymir' and I think the first child resulting from such a union was the first Founding Titan after Ymir.


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In Reincarnated as a Slime, could Rimuru create a large number of golems?
In season 1 episode 23 of the anime, at the end Rimuru creates a golem and summons a demon to possess it. It's his way of repaying Ramiris for her golem that he destroyed. Could he make a large number of those golems, even mass produce them as workers to fuel an industrial revolution?

in theory he can becuse he can mass produce anything if he has raw meterials using great sage power, he produced 25 baldes in dwarwen kingdom.

Yes. He needs magicules to summon the demon, materials to make the body (for Beretta he made it out of pure magisteel), and the demon needs to agree to the contract. If all those requirements are fulfilled, he can make as many as he wants. Both Beretta and Diablo he paid generously one way or another and they both wanted to serve him permanently.


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What song plays in Episode 902 in One Piece at 16:20?
Can anyone tell me the name of the OST in Episode 902 at 16:20 when Luffy and Zoro fight against sumo wrestlers?

The song is "Battle in the Colosseum" (コロシアムでの戦闘 ). It's track#21 from Album Original Soundtrack "New World", released on 2016-07-20
https://www.youtube.com/watch?v=9feq908XxTM


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What is the song playing in My Hero Academia Season 5 episode 13 at 19:00?
As the title say, What song is playing in My Hero Academia episode 13 season 5 at 19:00?

This insert song is called "Sound of the Holidays" by John Underdown.
You can see it credited in the ending credits:


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Why didn't Danzo want to recall Naruto to fight Pain, which would've stopped Pain's destruction of the village?
During Pain's assault on the Leaf, Danzo and the Elders didn't want Pain to get the Nine Tails to protect the village from destruction. But, hiding what Pain wants makes him destroy the village! That is to say, Pain was looking for Naruto/the Nine Tails, but Danzo didn't want to recall him and killed the toad messenger. But, by denying Pain what he wanted, he allowed him to really destroy the village.
Why did Danzo do that?

Danzo couldn't have known that Naruto returning to the battle would help turn the tide in the battle against Pain.
After all, on the one hand almost nothing is known about the mysterious leader of the Akatsuki. What is known is that Pain is so powerful that he even managed to kill Jiraiya, one of the legendary Sannin.
On the other hand, Naruto is (to the best of everyone else's knowledge) not yet of the caliber of Jiraiya. Naturally, Danzo (and others) cannot have known that Naruto had already surpassed his master by becoming a perfect sage. So, he couldn't have concluded that recalling Naruto would help win the battle against Pain and thereby prevent the destruction of the village.

Danzo is also gambling on Pain's attack being so devastating that Tsunade's term as the Hokage will come to an end because of it, either because she becomes incapacitated (or worse), or because of the immense loss in trust in her leadership due to the losses sustained from Pain's attack. In fact, he specifically instructs his ANBU to remain hidden instead of facing Pain head on, so that once the chaos overhead clears, Danzo can (almost literally) emerge from the shadows to become the new leader of Konohagakure.
So, preventing the destruction of the village is not very high up on Danzo's list of priorities. Quite the opposite, in fact.

Lastly, recall that Danzo views Naruto as nothing more than a weapon, a military asset for the village. He does not separate Naruto from the Kyuubi that he is hosting (indeed, most jinchuuriki have been viewed in the same manner throughout the history of the show). Thus, if Naruto is recalled back to the village then there is a high possibility that the Kyuubi will fall into the hands of the Akatsuki. That would be a huge blow to Konoha's military might, and Danzo wants to avoid this situation at all costs.
(Compare this with Tsunade's perspective. When she berates the two village elders, she tells them about how Naruto should be viewed as a Konoha shinobi, and that it is high time they learn to rely on him as a comrade instead.)

Danzo did not have any control over Naruto while he was on Mount Myobuku. Danzo did not have an affinity for frogs and he really had no way to contact Naruto. Also Naruto was doing important training there that he had to finish before returning to Konoha. Danzo probably did not want to rush Naruto's training and risk him not completing it.

Considering that he killed a frog to prevent them from contacting Naruto I don't think lack of communication was the issue.


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Is there a different voice actress singing the same ending for each arc?
I'm pretty sure (but also not certain) that the first episodes about Sakurajima Mai had the same voice actress singing the ending, but then on Episode 4 I noticed that the person singing the ending for that episode sounded like the voice actress for Tomoe Koga.
Does Rascal Does Not Dream of Bunny Girl Senpai have a different VA singing the ending for each arc?

Yes.
From Wikipedia,

The ending theme is "Fukashigi no Karte" (不可思議のカルテ), with each arc using versions by Asami Seto (Mai Sakurajima), Yurika Kubo (Kaede Azusagawa), Nao Tōyama (Tomoe Koga), Atsumi Tanezaki (Rio Futaba), Maaya Uchida (Nodoka Toyohama), and Inori Minase (Shoko Makinohara) under their character names.


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Why do some sources prefix "BOFURI" to the English title of "Itai no wa Iya nano de Bōgyoryoku ni Kyokufuri Shitai to Omoimasu"?
The manga and anime are called "痛いのは嫌なので防御力に極振りしたいと思います。" which is translated to "I Don't Want to Get Hurt, so I'll Max Out My Defense." Most English sites about manga and anime list it either in romaji or in the English translation. However Wikipedia lists it as BOFURI: I Don't Want to Get Hurt, so I'll Max Out My Defense. Apparently, they got the title from Funimation.
I have two questions based on that. How did they come up with the prefix, "BOFURI"? What does "BOFURI" mean or stand for?

"BōFuri"「防振り」 is the official abbreviation of the title in Japanese.
It is taken from the Japanese title 「痛いのは嫌なので防御力に極振りしたいと思います。」, which reads "Itai no wa Iya nano de Bōgyoryoku ni Kyokufuri Shitai to Omoimasu".
Related: Is there a name for the abbreviated (usually three syllable) title?


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Why can't Akamaru talk like Pakkun?
How come Pakkun can talk to Kakashi when summoned (in fact almost all summoned toads can talk), but Akamaru, who was brought up by Kiba since he was a pup, cannot speak?

Strongly related (duplicate?): https://anime.stackexchange.com/questions/7372/are-all-animals-called-by-summoning-jutsu-able-to-speak

Although both Pakkun and Akamaru are considered ninken (dogs with heightened senses and abilities, and as such, working alongside shinobis), the only difference between them is Pakkun is actually a Summon (much like sage toads). Summons are basically supernatural animal spirits and they take on anthropomorphic qualities  like talking, using weapons, wearing clothes etc. Akamaru is basically a highly trained dog that can use ninjutsu.
Atleast, Akamaru tried talking.


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What exactly does Sukuna say when Itadori breaks into Mahito's Domain Expansion?
In Jujutsu Kaisen's episode 13 "Tomorrow" (Transcription: "Mata Ashita"; Japanese: また明日), when Nanami Kento is trapped in Mahito's Domain Expansion "Self-Embodiment of Perfection" (Jihei Endonka), Itadori Yuji manages to break into it from the outside. Due to the nature of the domain, this brings Itadori—and hence also Ryomen Sukuna—into Mahito's contact. For the insolence of touching him, Sukuna proceeds to deliver a near fatal blow to Mahito while thinking the following:

It's either you die… or I die. It doesn't matter. Except for that guy <scene showing Fushiguro Megumi>, I couldn't care less.

This doesn't really make sense to me. Sukuna has no reason to be callous about his own existence in the situation. On the contrary, the entire scene shows, as far as Sukuna is concerned, any life can be taken or spared just based on his whims.
From my limited knowledge of Japanese, I would expect the word "ore" or some variant to appear in a phrase such as "or I die", but I hear the word "omaye" in both parts of the sentence, so Sukuna is probably saying "It's either you die… or you die," I guess?
Additionally, visually the part "It's either you die…" is said while the scene shows Nanami, and the part "or I die" is said while the scene shows Mahito writhing in agony.  So, I think it would make a lot more sense visually, too, if the subtitles were to instead read "It's either you die… or you die."
Could someone please clarify what the precise Japanese lines are in this scene, and whether the subtitles quoted in the beginning are indeed incorrect? The scene occurs at around 13:00.

In case it matters, I am watching the series on Netflix, and the subtitles there are slightly off in at least one other instance: see What honorific does Panda use when speaking to Yaga Masamichi?.

I just watched the scene. I think your understanding is correct.
He says お前が死のうと、お前が死のうと、どうでもいい (Omae ga sinouto, Omae ga sinouto, doudemo ii), which literally translates to you die, or you die, it does not matter (to me).
As you have correctly guessed the two you's refer to different persons, the one in gray suit and the one bleeding. So a more idiomatic translation would be I don't care which of you guys die.


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Why do characters from Jujutsu Kaisen make so many references to the Naruto-verse?
While watching Jujutsu Kaisen, I noticed several references to Naruto. Some of them are:

They referred to the martial arts as taijutsu. Regarding that, the Wikipedia article says (emphasis mine):

Taijutsu is a synonym for Jujutsu (method of unarmed or with minor weapons close combat). The words jujutsu, taijutsu, and yawara can be
used interchangeably. The term is commonly used when referring
to a traditional Japanese martial art but has also been used in the
naming of modern martial arts such as Gendai Goshin Jutsu, Yamabujin Goshin Jitsu and Bujinkan Budo Taijutsu.

The characters can stand on water (is that a reference?).

When confronted by Gojo Sensei that Itadori can't use cursed techniques, this is what the latter said:

I want to pull off a Spirit Gun or Bankai, or Rasengan, or Dodon Ray.

In episode 9, the villain mentions the Nine-Tailed Fox (Kyuubi).

Many hand signs are similar to what was shown in Naruto.

So, why are the characters of Jujutsu Kaisen making references to the Naruto anime? Is it because, since both shows are in the shounen genre, making such references is easier and looks more impressive? Or is there any relation with the studios (though the studios are different), or illustrators, etc.?

I'd argue that most of the supposed references to Naruto aren't specific to Naruto or are more general than they're portrayed.
1: Taijutsu (体術 literally body techniques) is a term that generally refers to martial arts which Naruto uses to draw the distinction from Ninjutsu (ninja techniques) which use chakra. Jujutsu (柔術) is a synonym for Taijutsu although there's special significance to the term in that Jujutsu serves as a basis for many modern martial arts (Judo, Brazilian Jujitsu, etc.). This is important because Jujutsu Kaisen's Jujutsu (呪術 literally curse techniques) is a homophone for the martial art Jujutsu (柔術 literally soft techniques). Which is to say they have as much to do with each other as roots and routes.
Another aspect of this is that Taijutsu is a general term for unarmed combat techniques (synonymous with the usage of the English term martial arts) in much the same way Kenjutsu is a general term for sword techniques and Bajutsu is a general term for horseriding techniques, here's a somewhat comprehensive list of jutsu.
2: Walking on water in Naruto is probably making reference to the belief that ninjas could walk on water, although it wasn't through chakra manipulation but using special shoes called Mizugumo (which themselves don't seem like they work unless running across marshy ground and rice paddies is considered the same as pulling a Jesus). Jujutsu Kaisen makes no such reference to ninjas but the act of walking on water is a lot older than ninjas, the main inspiration being Jesus.
3: Itadori does call out Rasengan by name which is a clear nod to Naruto but in the same sentence he also makes reference to many other famous techniques from other massively popular Shonen Jump works, these include:

Spirit Gun (aka Rei Gun): Yusuke Urameshi's signature move from Yu Yu Hakusho
Bankai: Powerful transformations that select Shinigami (soul reapers) in Bleach can perform
Dodon ray (aka Dodonpa): The signature move of the Tsuru-Sen style of martial arts practiced by characters like Tien and Chaozu from Dragonball

The point of Itadori's line is to get across he can't grasp the usage of cursed power and is relating it to the power systems of other manga he's read.
4: The Kyuubi (nine-tailed fox) is a relatively well known mythical being in East-Asian folklore, originating in China around 0 AD it was believed that when certain animals got old enough they gained mystical powers. Kitsune (the generic term for fox spirits as well as the actual animal) are very common yokai in Japanese media from the nearly millennium old tale of Tamamo-no-Mae to the Pokémon Ninetales whose first appearance predates Naruto's publication by 3 years. A mention of the Kyuubi is less likely a reference to Naruto in particular and more towards the traditional Japanese folklore in general (which Jujutsu Kaisen is deeply steeped in) in the same way a story with vampires isn't necessarily referencing the Twilight series as much as their progenitor, Bram Stoker's Dracula or the mythology about vampires in general.
5: Naruto's hand signs are not Kishimoto's creations, they are symbolic Hindu and Buddhist gestures called Mudras. Jujutsu Kaisen may be drawing from Naruto's use of the Mudras but it could just as easily be drawing from the source. Mudras relatively speaking are somewhat known in Japan given the prevalence and history of Buddhism in the country.
Is this to say Jujutsu Kaisen makes no reference to Naruto? Not at all, art influences art in ways big and small alike, One Piece's Eiichiro Oda and Fairy Tail's Hiro Mashima are both fans of Dragonball and have mentioned being inspired by it, which shows in their refinement of the battle Shonen formula codified by Dragonball. Yu Yu Hakusho's dark tournament gave us the template for the Shonen tournament arc which shows in everything from Naruto, to My Hero Academia and beyond. For a more recent example Tatsuki Fujimoto's Chainsaw man influences show front and center in more recent works such as Dandadan and Hunter's Guild: Red Hood.

For what I have learnt from Jujutsu Kaisen is that it is taken into account that the Author was influenced to create these characters based on that of Naruto-verse because he was inspired by that series. To support the fact that the author mentioned this is shown in this link.


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Why is Todo able to make recommendations to Principal Gakuganji for promoting Jujutsu sorcerers to Grade 1?
During the final credits scene of the last episode of Jujutsu Kaisen, we see that Mei Mei and Todo Aoi are presenting their recommendations to Principal Gakuganji of Kyoto Jujutsu Tech, who is also head of the conservative, for promoting to Grade 1 sorcerers some of the students who participated in the recent Sister-School Goodwill Event.
As far as I can tell, it is implied that Mei Mei is a teacher at the Kyoto school, since during the Goodwill Event she was observing the students along with many other faculty. So, it makes sense that her recommendations for promotion are being concerned.
However, Todo Aoi is a third year student at Kyoto Jujutsu Tech who, in fact, participated in the Goodwill Event. So, why are his recommendations being considered? From the explanation in episode 15, it seems to be implied that it is the faculty that make recommendations for promotion; in particular, it is mentioned that they cannot recommend their own students.
So, why are Todo's recommendations for promotion to Grade 1 sorcerers being considered? Is it because, as Zenin Mai mentions in episode 8, Todo is himself a Grade 1 sorcerer, and Grade 1 sorcerers are also possibly allowed to make recommendations? Or, is there more to Todo than meets the eye?

You are correct about his rank allowing him to do so. Basically, the person giving the recommendation has to be ranked higher than you.
When it comes to being ranked to grade 1, they need to have recommendations from 2 or more sorcerers of that rank which Aoi Todo and Mei Mei are both Grade 1. The recommendation alone isn't enough to be promoted right away. The nominees still has to accompany sorcerer's of Grade 1 level (cannot be the person who nominated them) to multiple missions and exorcise a Grade 1 on their own.
Here's a link to reference:
https://jujutsu-kaisen.fandom.com/wiki/Grade


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Genos VS Mosquito Girl Soundtrack
So I was rewatching One Punch Man, and when Genos started fighting Mosquito Girl, I was really enjoying the music. Is it on the OST, or is anyone able to tell me where it is from?

Yes.
The name of the song is "The Cyborg Fights", or it can be found under the name of "Genos Fight Theme".
Here are some links where you can listen the song:

One Punch Man OST - The Cyborg Fight (Genos' Theme) on YouTube

It is present in the official soundtrack of the anime (track #5 on the OST).

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/


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What is the song played in episode 492 at 8:30
There is a song played at around 8:30 in episode 492, which I have not heard of yet, but I really like. Is this an unreleased OST, or was it released in one of the movies? It would really help if somebody could answer. Thanks.

I believe the track your looking for is called Memories, and I think it's actually from the first Naruto, not Shippuden. I looked high and low man, and I finally found it lol

It's an unreleased OST. There are many OSTs that were left out from the 3 OST albuns. I've searched in multiple youtube channels for that specific one and I didn't find it.
You could send a private message via youtube to one of those guys that are constantly publishing those unreleased OST in their channels.

Yeah, I tend to follow the music closely so I'm not surprised that it is unreleased. However, in the most recent episode (493), they used a remake of "Ultimate Secrets". I think that they're either gathering material for Boruto, or preparing for a final album

From what I read, there will be no more OST albuns. And for the Boruto OST, I seriously doubt they will use this OST. They will probably make a new one.

That is most likely the case, but it does seem a bit odd to make these new OST's so close towards the end of Shippuden


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What do the symbols in the OP refer to?
In the opening theme song of The World God Only Knows, a couple of symbols fly around the screen.
This one seems to matches the loose soul detector that Elsie wears on her head

However, i don't understand the references in the other icons:

What do these symbols mean?

At least two of them related directly to New Hell and the Runaway Spirits Squad.  It's a hunch but I think they're all related to them.

The icon with a jar is the Weiss capturing device.

I don't know what the bear like icon refers to

The cat icon references the design of Kanon's stun gun as it appears in the anime. (The stun gun has normal appearance in the manga). The icon matches the stun gun on Kanon's right hand in the image below.

According to KamiNomi Wiki:

The original shape of the stun guns were replaced by kitten-style appearance in the anime as a safety image.

The hexagon icon is the Maijima emblem, which is shown most clearly in chapter 169. For the purpose of comparison:

The last 4 icons are Hellian alphabet. Referring to below chart from this forum posting by EyZi:

The characters are G, O, N, K, in order from left to right, top to bottom.


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Assassination-Classroom Ost ep19 season 2
In the episode 41 of assassination classroom (season 2 episode 19) at 4:05 of the episode there a music played, if anyone know the name of the song ?

Assassination Classroom 2nd Season Ost - 02. 解き明かされる謎 [Tokiakasa Reru Nazo]
https://www.youtube.com/watch?v=XHYF3Dsg2ck


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Where can I find the soundtrack played for the Oregairu Visual Novel for PS Vita?
Where can I find the soundtrack played for the Oregairu Visual Novel for PS Vita? I really like the music in it.

As far as I know this soundtrack hasn't been made into an official release. This might be of help, it's incomplete though https://www.youtube.com/watch?v=5h7QaSWKOUc


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What's the OST that plays when Jiren powers up at the end of Dragon Ball Super episode 126?
So there's this really cool theme that plays when Jiren powers up at the end of episode 126. I've just been trying to get the name of it for ages. I know I'm really really late but still. Any help is appreciated.

The name of this OST is Memories of time ! It is composed by Norihito SUMITOMO and can be listened to by this YouTube link (Recreated by Pokemix92) .


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What is the song used in Akame ga Kill during the Budou vs Mine fight?
In Akame ga Kill, there is a guitar song played in ep 21 Budou vs Mine and I can't seem to find it or any info about it. Does anyone know anything?

It's probably on the second OST, which comes out in three days: http://vgmdb.net/album/49691.

It called "Adramelech" just like Budou's Imperial Arm.

Please extend your answer with a bit more information. You could for example refer to album on VGMDB as mentioned in senshin's comment


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Trying to find DBZ theme
It plays on episode 24 at 9:00, been trying to find it for the past half hour and can't maybe someone can help me?
It should be from the original OST (japanese)

I watched that episode, didn't hear anything at 9:00..

The soundtrack which was played for first 199 episodes in DGZ was Cha-La Head-Ha-La by Hironobu Kageyama. Just check. if this is the one you are searching for. The link is right below.
https://en.m.wikipedia.org/wiki/File:Hironobu_Kageyama_-_Cha-La_Head-Cha-La.ogg


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What is the title of the song that played in Yosuga no Sora episode 10?
I need to know the name of the music that was playing in episode 10 of the anime Yosuga no Sora.
I mean the music that started at the 19:10 mark or the music that started when Haru saw Sora masturbating.

I believe it's "Tomadoi no Naka" (戸惑いの中), from the Yosuga No Sora Original Soundtrack -New- (ヨスガノソラ オリジナルサウンドトラック－New－).

its from the Yosuga no Sora OST -New-, in english its called, "in the midst of bewilderment" I believe


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What philosophical concepts and/or authors are referenced in the series Ergo Proxy?
As the series develops, it seems that Ergo Proxy has a growing number of philosophical references:

The concept of Anamnesis in episode 11.
The Council/Collective figures.
All the events in episode 20.
Every discussion Vincent has with Ergo about the 'self' (especially episode 11)
And numerous others that I don't recall at the moment...

Which philosophical concepts/authors are referenced or portrayed in the series?

I haven't seen the show, but from your question, I can't tell what the philosophical references are. Is it clear if you've seen the show?

@kuwaly: These are the only ones that are evident to me. But I hope someone more 'well-positioned' in the philosophical field may be of some help. Especially because I do not grasp a lot of subtle references.

Re-L Mayer's Citizen No., 124C41, is likely to be a reference to Hugo Gernsback's Ralph 124C 41+

The domes are a certain Platonic allegory.

It's been a long time since I have watched the anime, but here's a quick rundown of some of the concepts I think the anime portrayed:
Absurdism
The resulting conflict, called the "Absurd," to find meaning and not being able to find any, at least, not in a humanely possible way. In other words, meaning can be logically found, but not be achieved. This concept is shown in Raul's mental breakdown as he slowly loses any possible source of meaning in his life. His adopted child, for example, could have been a source of meaning, but as he loses that and Pino, he began to create the Absurd and the way he resolves this is through suicide. The are other examples of the Absurd, more noticeable when they're talking about their Raison d'Etre. Others can handle the Absurd in a different way, particularly the Proxies because they're not (normal) humans, although those like Re-L was able to handle it as well in the end. The way Ergo Proxy portrayed Vincent's journey can also classify this work as an Absurdist Fiction.
For more: http://en.wikipedia.org/wiki/Absurdism
Mind-Body Problem
This is more broad and can be divided into two subcategories: dualism and monism or physicalism (also called Identity Theory). Dualism is where the mind is separate from the body and the latter is when the mind is the body. This issue is addressed when the robots begins to acquire sentience on their own. The Cogito virus, which seems to be immaterial, is what gives the robots in the series their free will, their "mind," similar to how dualism says that the mind is immaterial and separate from the body. Yet, the experiences each robot has is what makes them act different, which also depends on the body. The state of mind of an intimidating military robot is going to be different than that of Pino, where people are more likely to treat her like a child. This issue is also more notable between Ergo and Vincent.
For more: http://en.wikipedia.org/wiki/Mind%E2%80%93body_problem
Social Contract
The anime briefly touched on this, but it's there. The legitimacy of Romedau's government is questioned. Cities can be created and destroyed easily by the Proxies, so it seems that the council is very powerless. More than that, no one voluntarily enters these cities. Rather, people are forced to exist inside them, either through artificial birth or through emigration (they were either to die in the harsh outside environment or live inside). In contrast, the commune outside of Romedeau works the opposite, in a way. Thus the problem: would you be willing to give up some of your freedom for comfort or would you rather have complete freedom?
For more: http://en.wikipedia.org/wiki/Social_contract
Existentialism
Very similar to absurdism. This problem is the question of where meaning comes from, if there is at all. It also deals with the issue of where existence came from, whether we existed without our bodies and how does it relate to our meaning. Existentialism on its own is too broad, however, but it seems to me that the anime touched on this as well.
For more: http://en.wikipedia.org/wiki/Existentialism
There's a lot of references on the other hand, so I'll only list a few:
Utilitarianism - Society should be guided so that everyone is equally happy. Thus everyone in Romedau is given meaning.
Transhumanism - There was a scene where a city is run completely by robots. This seems to be more of a jab on transhumanism rather than a support for it, as it shows there's no need for humans if everything is mechanized.
Divine Command Theory - Whatever the council says, it has to be good. Why? Because they said so.
Übermensch - Nietzsche's idea of a perfect human and how human propagation gives meaning. The proxies aren't perfect, but it somewhat alludes to it considering how obscenely powerful they seem to be and that their mission is to perpetuate human society, if I recall correctly.

Actually funny enough some of the robots in the anime are named after philosophers...
The Ergo Proxy Wiki states in the Production section
http://en.wikipedia.org/wiki/Ergo_Proxy

It is set in the future. A group of robots become infected with
  something called the Kojiro [sic] virus, and become aware of their own
  existence. So these robots, which had been tools of humans, decide to
  go on an adventure to search for themselves. They have to decide
  whether the virus that infected them created their identity, or
  whether they gained their identity through their travels. This
  question is meant to represent our own debate over whether we become
  who we are because of our environment, or because of things that are
  inherent in us. The robots are all named after philosophers: Derrida
  and Lacan and Husserl.

So pretty much the whole anime is about self discovery and coming to terms with their existence.  One such philosophical / socialogical debate we take from the above mentioned quote is that of Nature vs Nurture.  Are we who we are because of "what" we are, or is our "self" formed by our actions or the things around us.  There's quite a few different philosophical undertones, the most prominent I think is the one I quoted above.

big spoilers. go away.

 Cogito refers to - Cogito Ergo Sum - I think, therefore I am.

 also the word is similar to 'Cognito' or 'Cognition', which all derive from the root for 'know'.

 there's the whole daedalus/ikaros thing... oh i can't remember any more ;p

 the whole series itself seems sort of highlander/the one-like.

 asura/ashura is commonly used in anime, based on indian beliefs. let's not forget 'The Rapture' lol ;p

more? decided to move stuff from other thread lol

 pino = piano, the playing card soldiers of karos (karos = diamonds), the russian miniatures. how everything works like 'clockwork'? - the wombs, vincent's plan - gods trying to kill humans, while humans are trying to kill the gods (at least raul).