Shunpo — Flash Step.
Its inventor was Yoruichi Shihōin.
A forbidden-level combat art that merges Kidō (Ghost Techniques) and Hakuda (Hand-to-Hand Combat). A technique so advanced, it transcends conventional limitations.
When performed, dense, compressed spiritual energy coils around the user's shoulders and back—then floods the limbs.
Using this energy, the practitioner fuses raw physical might with ghostly force.
It's like pushing the full destructive potential of Kidō into every strike of Hakuda.
A technique of absolute motion—
This is Shunpo taken to the extreme.
Each step, each movement—
Carries devastating power!
And in that moment...
Naruto Uzumaki grasped it.
He reached an epiphany.
He merged his instinctive understanding of movement, his intuition for battle, and the chakra control honed over countless fights—
And created his own version of Shunpo.
Shun: A forbidden-level combat art combining Hakuda and Kidō.
In a flash, Naruto's mind was flooded with knowledge.
Memories, muscle memory, and theory all surged forth like a torrent.
Then, without hesitation, Naruto entered his mindscape—the sealed space of the Nine-Tails.
A realm beyond prying eyes, where no one could observe him.
It was there he tried Shun for the first time.
BOOM—
A massive surge of chakra erupted from his body.
It spiraled violently, wrapping around his back and shoulders, racing down his arms and legs.
"BOOM!!!"
A deafening sonic shockwave burst forth as Naruto looked down at himself.
This was his Shun Form.
His entire body overflowed with power—
Raw, untamed, exhilarating.
He dashed forward—
And with a single step, broke the sound barrier.
A tremendous sonic boom echoed through the sealed space.
The Nine-Tails twitched in alarm.
Its massive form stirred in its cage, glaring in disbelief.
Naruto had vanished.
Only a blinding streak of white light could be seen darting around the mindscape.
"Is that… Naruto?"
Kurama squinted, confusion and awe in his voice.
He could no longer track him.
His speed now surpassed anything the Nine-Tails had ever seen.
What the hell did this kid figure out now?
Kurama felt a chill—not of fear, but anticipation.
But Naruto wasn't done.
That first experience with Shun—
That was just the beginning.
He understood immediately:
This was merely the initial stage.
The true masters of Shunpo, like Yoruichi Shihōin, Soi-Fon, and Yūshirō Shihōin—
They all had evolved forms of the technique.
And Naruto…
Was determined to reach even further.
He focused.
He reflected on the essence of Shunpo.
The principles of momentum, ghost flow, and raw combat.
Then—
Epiphany.
He transcended the base form.
He invented new, advanced variations—his own evolution of Shun:
Shun: Infinite Flash
A form where wind pressure surrounds the body. The ultimate fusion of Hakuda and Kidō. Every movement holds unimaginable destructive force.
Shun: Thunder God Battle Form
Naruto transforms into a deity of thunder. Six radiant Raiton Magatama float behind him, pulsing with power.
Shun: Thunder Beast Battle Form – Nine-Tailed Fox Mode
Fusing lightning chakra with the image of Kurama, Naruto assumes a thunder-infused nine-tailed form.
Shun: Exploding Flame Form
With a mere gesture, Naruto can unleash fire powerful enough to incinerate everything in its path.
Within the sealed space, Naruto hovered in midair, shrouded in brilliant energy.
Then—he roared:
"Shun! Thunder Beast Battle Form – Nine-Tailed Fox Mode!!!"
Naruto fell.
"Crack!"
A violent surge of thunder exploded from his body.
Massive chakra—
Wild and untamed—
Burst forth and materialized.
In an instant, the energy around him warped and condensed, forming a colossal figure—
A fearsome, lightning-clad Nine-Tailed Fox.
Behind him, nine thunder whips—like living tails of lightning—lashed and cracked through the air.
Boom! Boom! Boom!
Each movement echoed like a peal of divine thunder.
Brilliant arcs of lightning lit up the sealed space in blinding flashes, dispelling the usual dimness.
And finally—
The real Nine-Tails, Kurama, trapped behind the crimson cage, was illuminated in full.
He now saw everything clearly—
His eyes widened with shock.
Naruto stood at the center of the thunder avatar's forehead—
Looking down from above.
Kurama stared, disbelieving.
This brat…
He actually used lightning chakra—
And created a creature almost identical to him!
"A brat like you…!!"
Kurama roared, his voice carrying anger—and something else beneath it.
Unease.
He was looking at himself—
A lightning clone, a mirror image—
A tailed beast forged from thunder.
And the terrifying part?
The chakra surging within that thunder beast…
It wasn't far off from that of a real tailed beast.
This wasn't a mere imitation.
Naruto had created a true tailed beast-level avatar.
Its chakra was vast.
Its form, monstrous.
Its energy—unstable, furious, and brimming with lightning-based destruction.
Kurama's instincts screamed that every strike from this beast could rival the attacks of real tailed beasts.
Maybe even surpass them—
Not because the others were weak…
But because this one was Naruto's.
His bratty Jinchūriki had created it.
And even Kurama—who now shared a body with Naruto—had no idea this power had been lying dormant inside him all along.
High above, standing proudly on the forehead of his thunder avatar, Naruto locked eyes with Kurama.
He grinned.
"Yo, Kurama. So this is what it feels like to look down on people from up here, huh?"
Kurama froze.
This brat…
He'd just performed what was effectively a tailed beast transformation, powered by a forbidden combination of chakra manipulation and lightning-style techniques—
Something that would've been classified beyond even S-rank ninjutsu…
And this was what he had to say!?
Kurama was dumbfounded.
Chest tight.
Words stuck in his throat.
How could he even respond?
This damn kid was treating the creation of a tailed beast-sized lightning avatar like it was some everyday ninjutsu.
Kurama was starting to realize something terrifying:
Naruto never really treated the act of inventing powerful techniques as a big deal.
Where other shinobi would spend years perfecting a single jutsu,
Naruto created them like breathing.
And now, Kurama finally admitted it to himself.
Even the First Hokage, Hashirama Senju—once the most revered shinobi in the world—
Didn't seem so impressive in comparison anymore.
Sure, Hashirama had his legendary Wood Release.
But this damn brat…
This damn brat was a one-man revolution.
Kurama let out a long breath, shaking his head.
At that moment, he wasn't angry.
He wasn't scared.
He was simply resigned.
He pitied anyone who would stand against Naruto in the future.
Especially those fools back in Konoha.
The old snake—Sarutobi Hiruzen—still clinging to power.
And the other vultures in the village's upper echelons…
They had no idea what kind of storm this boy was about to unleash.
The Nine-Tails—Kurama—couldn't help but wonder…
Would that old man, Hiruzen Sarutobi, the Third Hokage, ever regret what he had done to Naruto?
The lies.
The isolation.
The years of manipulation.
But that was a thought for the future.
For now—
Naruto was still transforming.
Still evolving.
He wasn't done yet.
With a deep breath, he activated the rest of the advanced Shun Forms:
Thunder God Battle Form.
Infinite Flash.
Explosive Flame Warrior Form.
Each one—
Unleashed like a tempest.
Each form—
A marvel of chakra control, raw elemental fury, and unthinkable creativity.
Each time Naruto shifted into a new transformation, the space trembled.
And inside his prison, Kurama felt it.
He trembled.
Not in body—but in spirit.
Even though he had already grown used to Naruto's habit of inventing new jutsu on a whim—
That didn't make witnessing it any less shocking.
Because seeing is believing.
And what Kurama was seeing—
Was a monster of potential in the making.
This boy who was once scorned by the village…
Who should've been a nobody…
Was now performing technique after technique that could reshape the shinobi world.
Even for Kurama—who had lived for centuries and seen countless wars—
This was the kind of genius that couldn't be explained.
A terrifying anomaly.
And the worst part?
This was still just the beginning.
...
TN:
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