What if Itachi sealed Sasuke into Naruto?

[Grubberg]

I asked this question on Quora.com.

Do you agree or disagree?

A person that goes by John Robison, Great Toad Sage of Mt. Myoboku said below.

So let's say that Itachi snaps his fingers and seals Hebi Sasuke into Naruto.

Several different variables would change the outcome of this event including but not limited to:

1: Is Sasuke sealed within the same internal chamber as Kurama?

• If the answer is YES:

Sasuke most likely completely suppresses Kurama with his Sharingan.

Let's not forget that a young and inexperienced Obito was able to control the Kyubii with relative ease during his attack on Konoha, and Hebi Sasuke should be of equivalent or superior skill with his Sharingan to that version of Obito.

Sasuke already shows that he’s more than capable of suppressing at least a portion of Kurama during his first encounter with Naruto in Shippuden.

Kurama directly compares Sasuke’s Sharingan to the likes of Madara Uchiha, who was more than capable of suppressing all of the Bijuu simultaneously. (not that I think Sasuke can do that yet, but its worth noting.)

• If the answer is NO:

This is a lot tougher because there are so many variables like I mentioned before. The answer to this changes depending on if Naruto is working with Sasuke or simply trying to contain him.

If he is against Naruto, we can assume that Naruto would Not make an active effort to free Sasuke as he does later with Kurama.

Instead, he would avoid internal interactions with Sasuke.

But John, Sasuke is Naruto’s closest friend. Why would Naruto avoid him entirely?

If we assume that Sasuke can leak chakra out of the seal, then we know that Sasuke could Genjutsu Naruto during an internal interaction and take control of Naruto’s body permanently, similar to what he did against Orochimaru.

(Hopefully, I don't need to explain why this would work).

On the other hand, If Sasuke is assisting Naruto, we would probably see something like this:

We can assume that Naruto would take advantage of the Sharingan to boost his Taijutsu and Ninjutsu skills. Maybe Genjutsualthough that is a bit unlikely.

2: Is Sasuke cooperating with Naruto, or is he actively trying to escape like Kurama?

I already answered this above in the case of Sasuke NOT being contained in the same sealing unit as Kurama, so for this section, I’ll highlight What would happen if Sasuke was sealed with Kurama, and was/wasn't cooperating with Naruto.

• If the answer is Yes:

Naruto would be stupidly OP for a large portion of the series. Having both the powers of Sasuke’s Sharingan as well as KCM from the recently suppressed Kyubii, Naruto would be nigh unstoppable, especially if he gains Sage Mode.

(I couldn't find a suitable image of a Kyubii Sage Sharingan, so it would look like this but with the pupils signifying Kyubii influence)

• If the answer is NO:

I’d like to think that Naruto alone would be incapable of restraining both Sasuke and the Kyubii both actively trying to escape, but this is honestly up for interpretation.

One thing I do know is that Naruto would be unable to rely on the Kyuubi to get him out of a pinch seeing as Sasuke has complete control of the Kyuubi.

This means Naruto has no access to either Kyubii V1/V2 or KCM.

That's right boys, Naruto’s prime would effectively be Toad Sage Mode if this were the case.

3: Is Sasuke capable of manipulating Naruto by leaking chakra from the seal-like Kurama can?

This variable only matters if Sasuke is NOT cooperating with Naruto.

• If the answer is YES:

I already pointed out that Sasuke could Genjutsu Naruto if this were the case, but it wouldn't be too farfetched to believe that Sasuke could leak enough chakra to momentarily control Naruto just like Kurama does before befriending Naruto.

You've seen Kyubii rage mode, but have you seen Uchiha rage mode?

We don't know exactly what this version of Naruto (Sasuke?) would be capable of, but one thing is for sure…

it wouldn't be pretty.

• If the answer is NO:

To put it in simple terms, nothing would happen unless Naruto was dumb enough to intentionally break the seal.

(It honestly wouldn’t surprise me if he did).

Sasuke would essentially just be trapped, waiting for Naruto to release the seal.

 

[muichimotsu]

Honestly, I'm wondering if there's even precedence for sealing a person into another person versus the chakra beasts that are reducible to an immaterial energy rather than what gets into weird time-space ninjutsu, the closest I can think of is Orochimaru being briefly sealed by Susanoo, though how he broke free is still bizarre with how the curse seals link him to everyone and he can literally just come out of it like he did with Anko.

Whether he'd function like Kurama depends a lot on the nature of the seal: it's a particular one for the Tailed Beasts, I feel like it'd be a separate chamber, even assuming there's a sealing jutsu that can seal a person into another person, body and all

 

[Monksailor]

I would say that if he did the containment field would have to be so powerful that it would send a time warp dispensation into the universe and destroy the center of Zimcadu releasing the forces of the unknown wizard of Blowbee and compelling the pink wizard of the White Castle of Gutrazek to release the mega G-rays he has contained in the trangitubal field of ZortToaekra and transtragetrazate their force into a Diputonium field surrounding the Great High Toad Wizard's planet, Toadstool. Be on-guard for Princess Beautizania for one look upon her breasts will transform you into a pile of sourdough for the chef of the purple wizard of Violetianka.