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...
However—
What Kurama didn't expect was…
Naruto wasn't done.
He raised the Wind Style: Rasenshuriken in his hand with no sign of stopping.
This technique—Wind Style: Rasenshuriken—is a highly advanced form of ninjutsu, where chakra is compressed into countless microscopic wind blades. It's one of the most difficult and dangerous techniques in the shinobi world.
And the danger isn't just to the enemy.
Back in the original timeline, when Naruto first used it, the technique shattered the bones in his right hand and severely damaged his chakra pathways. The medics warned that repeated use might cripple his ability to mold chakra in that hand altogether.
But the current Naruto is different.
First, his chakra control has far surpassed what it was back then. Second, his body isn't that of an ordinary shinobi anymore. Strengthened by the power of the Six Paths Sage Mode and the unique vitality of the Uzumaki clan, Naruto's physique now rivals that of a miniature Tailed Beast.
The recoil of the Rasenshuriken?
It couldn't even scratch him.
And even if it did… with his healing factor, those injuries would mend in seconds.
To Naruto now, this once-restricted technique was no longer a risky gamble.
It was just the beginning.
He could push it further.
He could evolve it.
"Wind Style: Giant Rasenshuriken!"
In just moments, the Rasenshuriken in his hand swelled to several times its normal size. The chakra density, destructive force, and scale of the jutsu grew exponentially.
Kurama's eyes widened in disbelief as he watched the oversized Rasenshuriken take form. Even he was momentarily speechless.
But Naruto wasn't finished.
His eyes burned with excitement—his grin growing wider.
Then he shouted—
"Wind Style: Super Large Rasenshuriken!!!"
A titanic surge of chakra erupted from his body—an output that rivaled the Tailed Beasts themselves.
Every drop of that chakra poured into the spiraling weapon in his hand, causing it to expand once more.
Until—
The Rasenshuriken grew to a size comparable to Kurama himself.
The roar of the spinning chakra blades echoed across the sealed space, rumbling like thunder.
Violent gales tore through the air, making Naruto's golden hair whip wildly around him. The blinding light of concentrated chakra made it nearly impossible to see the Rasenshuriken's true form.
Even Kurama had to squint his eyes.
The ancient beast stared at the scene before him, stunned.
He had lived for thousands of years. He had seen countless shinobi, many of them arrogant fools who believed they had power.
But in Kurama's mind, only two had ever truly earned his respect—Hashirama Senju, the First Hokage, and Uchiha Madara.
Until now.
His gaze dropped to Naruto.
Compared to the monstrous Rasenshuriken in his hand, Naruto's own body looked small and insignificant—barely more than a child.
And yet—
That child held within him a power that rivaled a Tailed Beast Ball.
Kurama couldn't deny it anymore.
This kid… had become something else entirely.
He wasn't just playing ninja anymore. He was rewriting what it meant to be one.
Naruto turned toward Kurama, grinning with pride.
"See that, Kurama?"
"This is my super S-rank jutsu—Wind Style: Super Large Rasenshuriken!"
There was pride in his voice—earned pride.
Crossing over into this world, all the trials he'd endured… it had all led to this.
He finally had the strength to stand at the summit of the shinobi world.
Kurama continued staring, still trying to process what he'd just witnessed.
Naruto caught the expression on his face—and smirked.
Then he turned toward a distant corner of the sealed space.
The corners of his mouth lifted into a determined grin.
"Now… let's see what you can really do!"
He thrust the massive Rasenshuriken forward.
"Wind Style: Super Large Rasenshuriken!"
With that cry, he hurled the technique.
The gigantic Rasenshuriken spun with a shrieking roar, tearing through the air like a violent hurricane. It streaked toward the darkness of the sealed space, lighting it up with radiant chakra.
As it flew, it cut through the air like a storm, its brilliant glow chasing away the gloom.
Then—
Impact.
The Rasenshuriken crashed into the ground.
Millions of razor-sharp chakra needles exploded outward on contact, tearing into the earth.
Then, after a brief pause—
Far in the distance within the sealed space,
A massive, semi-circular spiral explosion suddenly erupted!
"BOOM BOOM BOOM!!!"
A thunderous roar shook the surroundings, accompanied by a blinding light from the impact.
The entire space was instantly flooded with light and force.
It was terrifying beyond words!
In an instant, the enormous, high-speed rotating chakra blade began to tear through everything within range like a vortex of destruction.
If there had been any enemy standing at the center of the blast…
Forget their body—
Even their soul might have been shredded by that vicious and precise cutting force.
Completely annihilated.
Kurama, the Nine-Tails, stared at the aftermath of the blast. After witnessing its sheer destructive power...
He was even more certain now.
This technique's power... is absolutely on par with a Tailed Beast Bomb!
As he thought about this, Kurama's gaze shifted once more to Naruto outside the cage.
Even though he'd seen this brat many times before—
He couldn't help but feel utterly shocked.
Naruto, oblivious to what the Nine-Tails was thinking, simply stared in awe at the destruction he had caused.
Even he couldn't help but take a deep breath.
"Damn... that's intense."
This level of power...
Forget taking a direct hit—even grazing contact might leave someone half-dead.
Naruto silently mourned for any poor soul who might face him in the future.
Of course…
That wouldn't stop him from spamming these spiral shuriken like they were disposable!
He had fully mastered the wind nature chakra transformation—
And pushed it to its extreme limits, infusing it into his Rasengan.
That's how he created the Wind Style: Rasenshuriken.
And ever since that moment...
He could clearly feel the change in Kurama's attitude toward him.
It was subtle at first, but unmistakable.
Naruto chuckled to himself at the thought.
Though, to be fair—
A large part of that shift probably had to do with Naruto turning the sealed space into a paradise of modern junk.
Video games. Web novels. Manga.
Potato chips. Cola.
You name it.
For a jaded ancient beast like Kurama?
This stuff was dangerous. Addictive, even.
To corrupt a soul like Kurama's?
Child's play.
Lately, Naruto had even noticed something... amusing.
Kurama's figure was starting to look a little... rounder.
He pointed it out once.
The stubborn tsundere fox had immediately snapped back:
"Fat?! Where do you see fat? I've looked the same for a thousand years! Don't talk nonsense!"
Naruto, watching Kurama's defensive reaction, couldn't help but laugh.
He really was just like Naruto's past self.
A fat otaku... trapped in a tsundere fox's body.
Meanwhile...
A year had passed since Naruto first entered the Ninja Academy.
Just like that—in the blink of an eye—
The final exams had arrived.
...
TN:
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