When the Nine-Tails was sealed inside Uzumaki Mito and Uzumaki Kushina, it had been pinned against a scorching magma boulder, nailed down completely.
Now, simply being confined in a cage was already a far better situation.
No wonder the Nine-Tails had never gone berserk while inside Mito or Kushina.
Even without considering how powerful the sealing techniques used on it were, just their Adamantine Chains alone were enough to suppress it completely.
Back then, even when Kushina was on the verge of death, the Adamantine Chains she released still left the Nine-Tails utterly immobilized.
If not for the fact that extracting the Nine-Tails meant certain death for her, the beast would never have had a chance to escape from her body.
In truth, the Adamantine Chains were a sealing technique that Yoruha really wanted to learn.
Unfortunately, this jutsu was bound to the Uzumaki clan's bloodline.
Even Kakashi didn't know it.
—
Yoruha arrived at the space where the Nine-Tails was sealed.
He pushed open the giant iron gate in front of him.
Inside the cage, the Nine-Tails, which had been lying down, sensed the door opening.
Its eyelids lifted slightly.
A pair of blood-red pupils emerged from the darkness of the prison.
The Nine-Tails assumed Naruto had entered.
But as Yoruha slowly stepped inside, the beast frowned. Hmm? It's not that brat?
Realizing that the visitor wasn't Naruto, the Nine-Tails' expression turned furious.
It even stood up, letting out a deafening roar at Yoruha.
The sheer pressure of its power left Yoruha completely shaken.
Just from its roar alone, he could sense its terrifying might—if they were outside, this single roar would be comparable to the power of an A-rank jutsu.
And not just any A-rank jutsu, but a large-scale one.
This was Yoruha's first time seeing the Nine-Tails, and he finally gained a proper understanding of its power.
It was indeed overwhelmingly strong.
But Yoruha also knew that, right now, the Nine-Tails was tightly sealed by the Eight Trigrams Seal and had no way of escaping.
If it really did break free, Yoruha had no chance of defeating it.
"As expected of the Nine-Tailed Demon Fox, you really are as powerful as the legends say," Yoruha muttered to himself.
The Nine-Tails was surprised that Yoruha wasn't intimidated.
Its massive eyes locked onto him as it spoke coldly, "Brat, who are you? Why are you here?"
Yoruha remained silent for a moment before finally looking up and saying, "So you're the Nine-Tails."
The Nine-Tails' expression darkened, but it said nothing.
Yoruha continued as if talking to himself, "You really are powerful. But because you're so powerful, I definitely can't let you out. If you were freed, there wouldn't be anyone who could seal you again."
Hearing this, the Nine-Tails became enraged.
"ROAR!"
"Brat, you're seeking death!"
Another earth-shaking roar followed.
The immense chakra pressure pushed Yoruha back several steps.
And this was merely the residual force leaking from the Nine-Tails.
It was terrifying to imagine how devastating it would be if the Nine-Tails were actually released.
Yoruha had no confidence that he could reseal the beast.
He would already be lucky just to survive.
If the Nine-Tails were to break free now, there was no one in Konoha who could seal it.
Not even the Third Hokage.
Even if he used the Dead Demon Consuming Seal, the Nine-Tails would have to be restrained first.
Who could possibly accomplish that?
The only reason Minato Namikaze had managed to use the Dead Demon Consuming Seal on the Nine-Tails back then was that Kushina had used her Adamantine Chains to lock it down beforehand.
But now, there was no one in Konoha capable of restraining the Nine-Tails.
Not to mention, the Dead Demon Consuming Seal was a one-time-use technique.
The Third Hokage would never willingly resort to it unless absolutely necessary.
Because of this, Yoruha felt immense pressure at the moment.
If he made a mistake and the Nine-Tails broke free, even if he managed to survive, Naruto would not.
A Jinchūriki could not live if their Tailed Beast was extracted.
Even someone as strong as Uzumaki Kushina had only managed to survive for a short while thanks to the powerful vitality of the Uzumaki clan.
For an ordinary Jinchūriki, losing their Tailed Beast meant instant death.
The Nine-Tails continued to roar at Yoruha, recklessly unleashing its chakra.
The iron gate sealing it trembled, as if the beast was on the verge of breaking free at any moment.
However, Yoruha knew that the sealing formula was still intact enough that the Nine-Tails couldn't escape yet.
But if Naruto kept drawing on the Nine-Tails' power, the seal would only weaken further.
And telling Naruto to stop using the Nine-Tails' chakra was impossible.
Whenever he got angry or lost control, he would be forced to rely on it, whether he wanted to or not.
Which meant that the seal inside Naruto would continue to weaken over time.
The Nine-Tails roared for a long time, shaking the entire space, but after Yoruha's initial shock, he remained unfazed.
After all, the Nine-Tails was still sealed, and the amount of chakra it could leak out was limited.
And even then, the amount of chakra it had released was nothing compared to Yoruha's own reserves.
For an ordinary Jōnin, the Nine-Tails' chakra would be overwhelming.
But for Yoruha, it wasn't worth worrying about.
After a while, Yoruha finally spoke in a calm tone, "Alright, enough of your howling. You should know by now that none of this is doing anything to me."
The Nine-Tails, which had been roaring just moments ago, suddenly stopped.
Its eyes gleamed with cold malice as it asked, "Brat, who exactly are you? Why are you here?"
Yoruha stood with his hands in his pockets, looking at the beast before him.
"I'm Naruto's friend. I came here today because I wanted to see the legendary Nine-Tails for myself."
"Now that I've seen you, I have to admit, you really are powerful. I can't even imagine how terrifying the person who sealed you away must have been."
"You keep trying to lure Naruto into using your chakra, hoping to weaken the Fourth Hokage's seal, aren't you?"
"Well, that won't do. If you break out now, no one in Konoha can stop you."
"I came here to reinforce the Fourth Hokage's seal."
Hearing this, the Nine-Tails nearly burst into laughter.
"Hah! Brat, you sure know how to talk big."
"Do you even know what a sealing technique is?"
"You think you can strengthen the Fourth Hokage's seal? Who do you think you are?"
The Nine-Tails didn't believe for a second that Yoruha knew sealing techniques.
Sealing techniques were extremely difficult to master. Even the most basic ones required great expertise, let alone the Fourth Hokage's Eight Trigrams Seal.
That was an Uzumaki clan technique—having been sealed by three different Uzumaki over the decades, the Nine-Tails knew better than anyone how powerful their sealing jutsu was.
Yoruha wasn't bothered by the beast's mockery.
He knew the Nine-Tails had always been like this.
"Believe it or not, but you'll be staying inside Naruto for the rest of your life. Don't even think about escaping."
"I'm getting started now, so don't interrupt me."
Yoruha didn't want to waste words with the Nine-Tails.
He swiftly formed hand seals.
In an instant, golden chakra erupted from his body.
The Nine-Tails, which had been sneering just moments ago, suddenly froze.
"This chakra… Why does it feel so familiar?"
"Brat, who the hell are you?"
The Nine-Tails roared in anger.
But Yoruha ignored it. He wasn't going to reinforce the seal immediately—first, he needed to analyze the state of Minato's Eight Trigrams Seal to determine the best approach.
Meanwhile, the Nine-Tails watched the chakra surging from Yoruha and grew visibly tense.
Because this chakra… reminded it of Hashirama Senju.
Even though Yoruha was still young, he possessed an enormous amount of chakra.
Not as much as the Nine-Tails itself, but still far beyond what someone his age should have.
It was clear—Yoruha was no ordinary person.
The sheer presence of his chakra was enough to make the Nine-Tails wary.
What Yoruha didn't realize was that his chakra had already deeply shocked the Nine-Tails.
The beast wasn't even sure if it could suppress him.
Because Yoruha's chakra wasn't just normal chakra—it was Senjutsu chakra.
And the Nine-Tails knew just how powerful Senjutsu chakra was.
Back then, Hashirama Senju's chakra had felt just like this.
Not only that, but it also carried an overwhelming vitality, just like Hashirama's.
The Nine-Tails was starting to suspect—was Yoruha a descendant of Hashirama Senju?
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