I Became a Demon Sword and Traveled the Anime Worlds

"Oh, that's a pretty cool ability."

Gojo Satoru crossed his hands in front of him.

The next instant, his figure disappeared.

The blazing dragon tore through empty air, and Gojo reappeared some distance away to the right, one hand in his pocket and his smile as irritatingly confident as ever.

"But something that big should be hard to steer, right?"

The words had barely left his mouth when the flaming dragon bent.

It did not slow down. It did not arc naturally. Its enormous body twisted with an impossible sharpness, as if common sense had been dragged outside and beaten unconscious, and its burning jaws lunged at Gojo again.

Gojo's brows lifted.

"For real? It can even turn like that?"

He vanished once more.

The dragon missed by a hair, scorched across the sea-like surface of the Domain, then changed direction again.

Inside the blazing dragon, Tanjiro's eyes remained calm.

Each turn added power.

Each rotation built speed.

Each pass fed the flames until the dragon grew larger and fiercer, its body winding through the air like a sun-born beast hunting prey.

Gojo teleported again and again, flashing across the battlefield with effortless precision. Tanjiro pursued without hesitation, turning once, twice, then again, flames roaring louder with each impossible shift.

By the twelfth turn, Gojo's rhythm showed the faintest gap.

That was enough.

Tanjiro stepped through it.

The dragon opened its burning maw and swallowed Gojo whole.

A violent crash shook the arena. Flames exploded upward, spiraling into a towering vortex that clawed at the sky. The heat alone was enough to distort the world, and the ground beneath them split beneath the force of impact.

Within the inferno, Gojo stood untouched.

Limitless separated him from everything.

The fire could not reach him. The sword light could not reach him. Even the pressure of the impact itself slowed before him, trapped in that infinite distance between contact and completion.

Looking at Tanjiro from such a close range, Gojo's smile did not waver.

"So this is the strongest Sword Master of all time."

He raised one hand.

Tanjiro's body was violently pulled away.

Gojo vanished from where he stood and reappeared beside him in midair. His fist drove upward, wrapped in Cursed Energy and the pull of Cursed Technique: Blue, slamming straight into Tanjiro's abdomen.

The impact launched Tanjiro higher into the air.

Gojo landed lightly, looking up with genuine satisfaction.

"Even his body is that sturdy?"

He could tell.

That punch had connected, but it had not caused any meaningful damage.

Gojo tilted his head back and raised his hand again.

"Then how about this? Blue."

Space twisted.

Eight spheres of Blue formed around Tanjiro, each one dragging at him with violent attraction. The air screamed as those points of force pulled and crushed, tearing at his body from all directions like invisible mouths.

Even in the middle of that storm, Tanjiro's expression remained as still as deep water.

"Asuramaru."

Demon Power surged.

Black smoke erupted from the sword in his hand, spreading outward like ink poured into the sky. The smoke wrapped around the Blues, swallowed them, and crushed their pull into nothing.

Gojo's interest sharpened.

"So that's Asuramaru's power?"

The answer came from inside the black smoke.

Countless dark crescent slashes tore out in rapid succession.

"Getsuga Tensho."

The pitch-black sword waves cut toward Gojo from every direction.

Gojo did not dodge.

The moment the slashes approached him, their paths bent. Infinity twisted their trajectories away from his body, sending them ripping through the arena around him instead.

Far off to the side, Yuji's eyes shone as he watched the battle unfold.

He did not understand half of what was happening.

That did not stop him from understanding the most important part.

"That's so cool!"

Asuramaru, standing atop the sword hilt, watched the battle with narrowed crimson eyes.

After that exchange, he had already reached a conclusion.

Without a Domain to neutralize Gojo Satoru's Infinity, touching him would be impossible.

Gojo seemed to have reached his own conclusion as well.

Amid the rain of black slashes, he lifted one hand and pulled off his blindfold.

Deep blue eyes opened beneath it.

The Six Eyes shone with a clarity that seemed to see through the structure of the world itself.

Gojo brought his index and middle fingers together.

"Domain Expansion: Unlimited Void."

Space unfolded.

The world centered on Gojo and swallowed Tanjiro whole.

In an instant, the sea and sky vanished.

Tanjiro stood inside the depths of the universe. Endless space stretched around him, vast and cold, shaped by the overwhelming presence of Gojo's Six Eyes. The moment their gazes met, an infinite flood of useless information poured into him.

Gojo stood within his Domain, calm and almost gentle as he explained.

"This is the inner world of Limitless. Perception is forced to repeat itself endlessly in order to sustain the act of living. You're given everything, so you can do nothing."

He smiled faintly.

"This is my Domain."

But Tanjiro did not collapse.

He did not freeze.

He did not even tremble.

At present, Tanjiro had no true consciousness of his own. He was a perfect reconstruction of his original self, a battle puppet carrying all of Tanjiro Kamado's traits, instincts, skills, and strength.

Unlimited Void had nothing meaningful to drown.

Under Asuramaru's control, Tanjiro raised both swords once more and pointed them toward Gojo.

For the first time in the fight, Gojo looked surprised.

"My Domain didn't work?"

Tanjiro did not give him time to think.

His voice was low and steady.

"Domain Expansion: Ashura Kannon."

Black smoke burst from Asuramaru.

Demon Power surged and transformed into vast, majestic Cursed Energy. Behind Tanjiro, the enormous sword emerged, followed by countless other swords suspended in the darkness.

The air thickened.

A thin black mist spread across the arena.

Then, with a single thought, countless Asuramaru swords condensed within the mist and stabbed toward Gojo at the same time.

This was an open Domain.

And because it had no closed shell, its range extended beyond Gojo's Unlimited Void.

Outside Gojo's Domain, dense sword shadows manifested and pierced directly into the exterior barrier.

The result was immediate.

Unlimited Void shattered.

Gojo, still within its collapsing space, was struck by Ashura Kannon's sure-hit effect.

The swords in midair vanished.

Then they reappeared inside his body.

One after another, they pierced through his limbs, torso, shoulders, and abdomen. They dissolved into Demon Power the moment they struck, invading his flesh and spreading through him like a curse that was not a curse.

For the first time, Gojo's expression turned heavy.

No shell. Massive range. It broke my Domain from the outside.

His thoughts raced while Reverse Cursed Technique began repairing the damage.

No, my healing efficiency is dropping.

Not exactly. The amount of Cursed Energy required to heal is increasing, while my Cursed Technique output is falling.

Those swords are eroding my body.

And now that my Domain collapsed, I'm in cursed technique burnout.

I can't counterattack properly. I need to endure the sure-hit effect and escape the Domain's range.

The moment that thought formed, Gojo moved.

He turned and fled toward the edge of the Domain.

Tanjiro did not chase.

He simply stood where he was.

Just as Gojo reached the boundary, the open Domain changed.

The black mist surged upward, folded over, and formed a shell.

In one breath, Ashura Kannon shifted from an open Domain into a closed Domain, sealing Gojo inside.

Gojo stopped.

Then he laughed softly, though there was no ease left in it.

"You can even switch between open and closed? My compatibility with you is awful."

The next wave of swords came crashing down.

Gojo was forced to turn and face them head-on. The sure-hit effect drove blades through his body again and again, forcing him to burn through Reverse Cursed Technique at an alarming rate.

But he did not give up.

Gojo crossed his hands.

"New Shadow Style: Simple Domain."

A small Simple Domain spread beneath his feet.

It was compact, barely large enough to protect him, but it neutralized Ashura Kannon's sure-hit effect and gave him the briefest chance to breathe.

Tanjiro moved the instant that opening appeared.

He closed the distance with both swords drawn.

Flames, water, and lightning flowed through his forms in seamless succession. Each strike was clean. Each step carried no wasted motion. This was not raw speed alone, nor mere power. It was swordsmanship refined to the limit of an entire world.

Gojo was dragged into close combat.

For a man who stood at the summit of the modern jujutsu world, he found himself pressured in a way he had not felt in a long time.

A slash passed his cheek.

Another nearly opened his throat.

The third came for his neck.

Gojo barely twisted away from it, blood spilling as Reverse Cursed Technique burned through his body to repair the damage.

His smile had faded.

The playful ease was gone.

For the first time since entering Asuramaru's Domain, Gojo Satoru looked completely serious.

.....

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