It wasn't just Jiraiya and the others who were stunned— even Madara, Izuna, and Obito looked dumbfounded.
Though the Uchiha were known as a clan of warriors—dubbed 'battle maniacs' across the shinobi world, each one a natural-born killer—there were limits to that image.
Objectively speaking, the Uchiha were drawn to the thrill of battle, not to the act of killing itself.
There's a clear difference between the two.
And yet, Kazuki's actions felt like he was actively trying to optimize the art of mass slaughter.
That… was incredibly un-Uchiha.
In the original timeline, even after achieving the power of the Sage of Six Paths, Madara still tried to justify his actions to Naruto and Sasuke, saying:
Sure, I started the Fourth Great Ninja War... but I did give them a chance to hand over the tailed beasts peacefully.
And right before Kaguya swallowed him whole, in his dying breath, he said:
Impossible… The Infinite Tsukuyomi is the Uchiha clan's way of bringing peace!
In other words, even this so-called demon of the shinobi world never truly wanted to bathe the earth in blood.
Sure, if someone blocked the road to his dream of peace through the Infinite Tsukuyomi, he wouldn't hesitate to remove them.
But that didn't mean he ever wanted to achieve peace by killing everyone.
On the contrary, Madara believed that the Infinite Tsukuyomi would be better the more people it could envelop.
And yet… watching Kazuki now, Madara couldn't help but wonder:
Is this kid seriously trying to nuke the entire shinobi world to achieve peace?!
No. Just… no!
Izuna fell into a deep silence. Kazuki's brutal tactics…
Even he, the number one Tobirama-hater in the shinobi world, had to admit—Senju Tobirama wouldn't have gone this far. Either something was seriously wrong with Kazuki… or Izuna's own theory was right all along.
Kazuki had been following the instructions on the Uchiha Stone Tablet—this had to be the result!
Even the single-second replication of Scorch Release—just that alone set off all kinds of alarms in Izuna's head.
Kazuki had used Scorch Release without even activating his Mangekyō Sharingan.
Madara had once speculated:
Kazuki's ability to replicate kekkei genkai… it's probably tied to his Mangekyō.
But to Izuna, that explanation sounded way too far-fetched.
Everything pointed to one conclusion—Kazuki was harboring some terrifying truth about the Eye of the Moon Plan.
"Brother. Obito." Izuna's voice grew grave as he slowly asked: "Was Kazuki always like this?"
Madara and Obito shook their heads at the exact same time, their synchronized motion unintentionally funny in such a serious moment.
Kazuki's kindness was practically legendary.
Not only toward his fellow villagers—he had even managed to charm bounty hunters like Kakuzu with sheer force of personality.
Madara used to believe that Kazuki might really be able to bring a century of peace to the shinobi world all by himself.
True, it wouldn't be the eternal peace offered by the Eye of the Moon Plan, but still—Madara had always wanted to meet and persuade him.
But the Kazuki they saw now… was like a completely different person.
"Kazuki's clearly been corrupted by Tobirama," Obito growled, fury flaring in his eyes. "I never imagined the Second Hokage was such a bloodthirsty monster!"
"Damn that twisted Senju Tobirama!"
Black Zetsu, on the other hand, didn't so much as flinch. If anything, he was barely suppressing a chuckle.
Nothing Kazuki did could shock him anymore…
Unless, of course, Kazuki actually turned against Kaguya—and not just that but did something truly unforgivable. Then, maybe Black Zetsu would lose his composure.
'These fools really don't understand Uchiha Kazuki. How can they hope to be his enemies…'
Black Zetsu sighed inwardly.
'Do they really think he's going to kill everyone? Of course not. He's just building an atmosphere of fear.'
As a master manipulator of human hearts, Black Zetsu knew the game.
Terror must come in waves—tightening and releasing. If Kazuki just wiped everyone out in one stroke, many wouldn't even have time to react emotionally. There'd be no fear, no power to harvest.
No—what truly torments people is the fear of death lurking somewhere, without knowing when it will strike.
From Black Zetsu's perspective, Kazuki would kill… but not all of them.
Instead, he'd strike a chilling balance—leaving the shinobi forces trapped in a blood-soaked psychological hell.
Like a devil, Kazuki would savor the ripple of their emotional collapse, feeding off their spiritual destruction until he could harvest their very souls.
"…Izuna. What should we do now?"
Madara exhaled slowly. This wasn't like the time Kazuki wiped out ten thousand Iwagakure shinobi in a single instant.
Well… okay, that time had already felt off—but back then, Konoha had been at a severe disadvantage.
Overkill had seemed somewhat justifiable…
But now? Kazuki was facing the entire Allied Shinobi Forces.
If he really planned to massacre them all in one go… even Madara wasn't sure he could sit back and let that happen.
Was he seriously going to have to step in before the Eye of the Moon Plan was realized?
Would he have to become the world's savior, just to stop Kazuki?
Obito, meanwhile, was already spiraling into grief.
The gentle, sunny Kazuki they once knew… had been twisted by this repulsive shinobi world—and by the evil that was Senju Tobirama—into a butcher with bloodstained hands.
This world truly was a hell.
It had to be corrected—no matter the cost.
And in that moment, Obito's conviction to unleash the Infinite Tsukuyomi burned brighter than ever.
"Let's wait and see for now, Brother."
After some careful thought, Uchiha Izuna spoke slowly, "Perhaps Kazuki is just trying to intimidate them..."
"Besides, the Kage from the Allied Shinobi Forces haven't made a move yet. Even if we plan to stop Kazuki, now is not the right moment."
"Still, we need to prepare for battle..."
A trace of worry crept into Izuna's expression. "If Kazuki really possesses the ability to learn kekkei genkai… then is it possible he can also learn dōjutsu?"
"If that's the case, and we confront him without being certain we can control him—if he ends up copying the abilities of both me and Obito—then we'll be facing a truly terrifying enemy..."
"Let the Kage test the waters for us. Let's see what cards Kazuki is really holding."
Hearing Izuna's words, both Uchiha Madara and Uchiha Obito nodded in agreement.
As expected of the clan's brain before Kazuki came along—his logic and planning were razor-sharp.
With Izuna's reasoning calming their nerves, both Madara and Obito began to feel more at ease.
Yeah…
Perhaps Kazuki, by saying that 'the killing was very slow,' was just trying to dissuade them. Could he really annihilate them all?
Kazuki was such a gentle person. Surely, someone like him would respect life…
But in truth, of the four present, only Black Zetsu had truly seen through Kazuki's intentions!
Just like when he provoked Kirigakure's heart, Kazuki wasn't aiming for total destruction—he only wanted to weaken each village's strength and morale to a certain threshold.
Even for the sake of the Sage of Six Paths, Kazuki couldn't go too far.
After all, ninjas were, in essence, the continuation of Ninshū. If he sent the entire Allied Shinobi Forces to the Pure Land in one go, wouldn't that be equivalent to wiping out Ninshū's legacy?
Until he reached an understanding with Kaguya, Kazuki had to show the Sage of Six Paths some respect.
Not much, but enough.
Because Kazuki wasn't out for slaughter—his goal was to seal the Kaguya within him deep beneath the ocean. To prevent the darkness in people's hearts from bringing the progenitor of chakra back to this world, he had no choice but to trim away the forces of opposition.
He was a good man—not a villain.
In Kazuki's eyes, even if he had to kill a little more than he wished, the Sage of Six Paths would fall into deep thought once he saw Kazuki seal himself away…
Kazuki had done nothing wrong!
"…Still alive, huh?"
Kazuki's gaze flicked toward a chakra signature escaping underground—it was Pakura, who had survived the Scorch Release explosion.
Perhaps her mastery of the Scorch Release allowed her to defend against it?
Surviving might actually be for the best. In the original timeline, she was discarded by Sunagakure—a mere pawn. But maybe now, she could stir up unrest within Suna after the war, serving a new purpose.
"They're still not showing themselves… the Kage, the Jinchūriki…"
Kazuki looked out at the waves of shinobi surging forward again. Deep in thought, he spoke to Tobirama: "I get it now. They want to wear down my chakra with sheer numbers. Then, once I'm exhausted, they'll send their strongest to finish me off in one decisive blow?"
Tobirama nodded in agreement. "That's what I suspect too. Be careful, Kazuki."
"They know you're a master of the Flying Thunder God Technique, so they're bound to have laid some kind of trap…"
Kazuki looked down at his own palm and sighed. "Tobirama, you know the condition of my body… If I can avoid it, I don't want to use chakra. It accelerates the corrosion inside me…"
Tobirama nodded with a helpless expression. "I know. That's why you've only been using taijutsu up until now. But there are just too many enemies—you had no choice but to resort to ninjutsu."
"And not only that… they've hidden all the Jinchūriki. They're clearly preparing for a battle of attrition."
Kazuki gazed inwardly at the Rinne Sharingan embedded within him, amusement glinting in his eyes. "But what they don't realize is… if they push me to my limit—if I can't hold on—then what awaits is the destruction of the entire shinobi world."
"Still… even if they don't understand me, I have to save them."
"Tobirama, how many shinobi do you think I have to kill before the Jinchūriki, and the Kage finally show themselves? How many lives must it take to prevent them from retaliating against Konoha later on? Compared to unleashing a massive surge of chakra all at once, what's even harder on my body is using small amounts repeatedly…"
Kazuki tossed the burden of that grim calculation onto Tobirama.
Something that shady… might as well let the naturally evil Second Hokage decide.
Tobirama froze in place.
He had just opened his mouth when he realized—
One word from him could lead Kazuki to kill tens of thousands of people!
This feeling…
To decide life and death with a single sentence—it wasn't a pleasant experience.
To massacre in the name of protecting the Shinobi World…
How twisted.
How tragic.
Tobirama rubbed his temples hard, pondering for a moment before finally uttering a number: "Ten thousand."
"If that's the case… then after eliminating those Jinchūriki and some of the Kage, the loss of ten thousand elite shinobi from the major shinobi villages will set them back more than just one generation. Afterward, our descendants can conquer them with soft power instead…"
Kazuki glanced at Tobirama in surprise.
Only ten thousand?
That's… rather conservative.
"I understand, Tobirama. Let's hope your judgment is right..."
Kazuki took a slow, deep breath, then exhaled.
"This technique… I've never used it before. Let's hope it delivers."
His expression turned solemn.
He rose slowly into the sky and opened his mouth…
Once again, chakra began to gather.
But this time—it wasn't Scorch Release.
It was an endless stream of vibrant blue and deep crimson particles—
The manifestation of Yin and Yang chakra!
These particles rapidly layered over one another, compressing tighter and tighter.
Under the immense supply of tailed beast chakra within Kazuki's body, the astonishingly dense chakra sphere continued to expand…
The Tailed Beast Bomb!
In just a few seconds, the Tailed Beast Bomb he formed had grown several stories tall!
What's the fastest way to kill enemies on a crowded battlefield?
In the Shinobi World, there are many options...
But right now, with the Shinobi Allied Forces already prepared for Kazuki's other techniques, only something entirely new could catch them off guard.
After all, no one had ever considered how to defend against Konoha's use of a Tailed Beast Bomb…
Because everyone knew the Nine-Tails was uncontrollable.
No one could've imagined Kazuki—just a human—was capable of unleashing a Tailed Beast Bomb, a technique so destructive it was usually wielded only by disasters made flesh!
And the worst part?
The scale of his attack was even more terrifying than that of an actual Tailed Beast!
"We can't wait any longer! Killer Bee! Yugito! Transform—NOW! We have to fire back with a Tailed Beast Bomb of our own!"
The once-calm Third Raikage could no longer remain composed. He spun around and roared at the two Jinchūriki.
High above in the sky, Ōnoki had also begun to panic.
He quickly formed the seals to summon his Dust Release technique, desperate to stop Kazuki.
But it was already too late.
Dust Release required time to charge.
So did full tailed beast transformation.
Kazuki was even faster than a real Tailed Beast!
After all, as a master of ninjutsu, his understanding and control far surpassed any mere beast.
While everyone else stared in shock and horror—
Kazuki summoned the chakra of the Three-Tails, Four-Tails, Five-Tails, Six-Tails, and Nine-Tails…
And released a Tailed Beast Bomb charged to its absolute limit.
Target:
The center of the Shinobi Allied Forces.
The symbol of annihilation—
The Tailed Beast Bomb roared across the sky, erupting with incomprehensible energy drawn from both Yin and Yang chakra!
The earth shattered in a deafening instant.
A searing light and unbearable heat consumed the battlefield—
And in the blink of an eye, the heart of the enemy's formation was wiped off the map.
This was no longer a man's power.
It was a natural disaster.
An unstoppable force of destruction punishing humankind.
This time—
There were no charred bones from a Scorch Release.
No severed limbs left behind by blades.
Nothing remained at all.
Not even a scream.
"They're here, Tobirama."
Following the cataclysmic blast, the elite assassination unit sent to kill Kazuki could no longer stay hidden.
Led by the Third Raikage and Ōnoki, along with the Third Kazekage, Chiyo, Hanzo, and the Jinchūriki of the One-Tail, Two-Tails, Seven-Tails, and Eight-Tails—
Nine of them in total—suddenly appeared at the front lines.
Each of them stared at Kazuki with eyes full of hatred.
Kazuki casually counted their heads, then smiled in satisfaction.
"Finally… you all showed up."
"I was starting to wonder if I'd have to launch another one."
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