When a God of Destruction Was Reincarnated in Tensura:

The arena fell into an eerie silence as Goku and Rimuru stepped forward, standing opposite each other in the grand battlefield. The air between them shimmered with raw energy, distorting reality itself. The other fighters watched intently, aware that this clash was unlike any they had ever seen.

Beerus leaned forward on his throne, a smirk forming on his lips. "This is it. A battle of two beings who stand at the peak of existence. This should be entertaining."

Whis nodded. "Indeed, my Lord. This will not just be a contest of strength, but of technique, adaptability, and pure combat mastery."

Rimuru's golden eyes met Goku's, a glimmer of amusement in them. "I've heard much about you, Son Goku. You're supposed to be the strongest martial artist in your universe."

Goku grinned, cracking his knuckles. "Yeah? Well, I've heard about you too. Demon Lord, ruler of Tempest, and someone who rewrites reality just by thinking. Sounds fun!"

Rimuru chuckled, drawing Moonlight Edge, the sword glowing with a radiant blue hue. "Then let's find out who stands at the peak, shall we?"

With a nod from Beerus, the battle began.

Phase 1: The Dance of Martial Masters

In a flash, Goku and Rimuru vanished.

The battlefield shook violently as the two reappeared mid-air, exchanging a flurry of blows faster than the eye could follow.

Goku twisted, ducked, and countered, his strikes precise and calculated. Rimuru matched him blow for blow, using his sword to deflect Goku's punches while simultaneously launching fluid counterattacks.

BOOM! BOOM! BOOM!

Shockwaves rippled across the battlefield as their fists and sword clashed, creating bursts of wind that forced the spectators to brace themselves.

"Impressive," Whis mused. "Rimuru's skill with the sword is impeccable. His movements are as refined as Goku's hand-to-hand combat."

Beerus grinned. "Hah. But Goku isn't even serious yet."

Goku suddenly vanished behind Rimuru, delivering a powerful elbow strike to the back.

Rimuru twisted mid-air, using the momentum to slice upward with Moonlight Edge.

Sparks flew as Goku barely dodged, the tip of the blade slicing his cheek.

Goku wiped the blood off and smirked. "You're good."

Rimuru grinned. "You haven't seen anything yet."

Goku flared his aura, ascending to Super Saiyan Blue in an instant.

The arena trembled as his power skyrocketed.

Rimuru, unfazed, activated Deus Ex Machina, The Divine Architect. A massive golden circuit-like pattern formed around him, pulsating with divine energy.

Goku charged.

He appeared behind Rimuru in a blink, delivering a devastating kick to the ribs—

But Rimuru vanished just before impact.

"Huh—?!"

Suddenly, Goku felt something cold against his throat.

Rimuru reappeared behind him, Moonlight Edge resting just beneath his chin.

"You rely too much on direct attacks, Goku."

SLASH!

Goku barely dodged, but a cut appeared on his shoulder, glowing with Rimuru's magic-infused power.

"Damn, you're fast!" Goku laughed, wiping the wound.

With a sharp cry, Goku powered up further, his aura shifting into a deeper hue—True Ultra Instinct.

His silver hair shimmered as his entire presence became calm and untouchable.

"Alright," he said, rolling his neck. "Let's get serious."

Rimuru's eyes narrowed. "Now it's getting interesting."

Goku blurred out of existence.

Before Rimuru could react, Goku's fist slammed into his gut, sending him flying.

BOOM!

Rimuru crashed through multiple floating islands, breaking apart the terrain.

But before Goku could follow up—

A black portal appeared behind him.

A massive tendril of abyssal energy shot out.

Goku dodged—but it changed direction mid-air, slamming him into the ground with enough force to create a crater.

Rimuru emerged, his aura shifting.

His golden eyes glowed brighter, and his power surged exponentially.

"Azathoth, The Infinite Abyss—Full Release."

A black void expanded around Rimuru, warping reality.

Everything in its range was consumed.

Even light struggled to escape.

Goku flared his aura, resisting the pull.

But Rimuru warped directly in front of him and unleashed a devastating Blast Buster.

A massive explosion of cosmic energy engulfed Goku—

BOOOOOOOOM!

The entire battlefield shook violently.

When the dust settled, Goku was bruised but smiling.

"That was insane," he admitted, cracking his neck. "But I'm not done yet."

He clenched his fists, his aura spiking once more.

Goku closed his eyes.

His energy became weightless.

Then—

His form changed.

A new silver-gold aura enveloped him. His hair shimmered between silver and blue. His eyes became divine, a fusion of Ultra Instinct and his Saiyan power.

Whis's eyes widened.

"This… this is something entirely new."

Beerus leaned forward. "Hah. He's broken another limit."

Rimuru watched carefully. "You're evolving in the middle of battle?"

Goku grinned. "Yeah, that's kinda my thing."

And then—

Goku moved.

Not even Rimuru's enhanced perception could track him.

A fist connected with Rimuru's stomach, sending him hurtling into the abyss of space.

Before he could recover, Goku was already above him—

A massive Ki blast forming.

"Dragon Fist!"

A golden dragon made of pure energy surged forth, crashing into Rimuru and exploding with a cosmic burst.

The shockwave sent ripples across dimensions.

For a moment—nothing.

Then, from within the explosion—

A golden light emerged.

Rimuru stood, unharmed.

He smirked.

"You're not the only one who can transcend."

His aura shifted into an ethereal glow. His form became untouchable, beyond reality itself.

"Genesis Omega: The Eternal Core."

The space around them cracked.

The entire battlefield changed.

Suddenly, Goku and Rimuru stood in a void of infinite possibilities, where time and space had no meaning.

Goku exhaled, grinning wildly.

"This… is AWESOME!"

The two warriors charged once more—

And the battle continued.

The battlefield was no longer a simple arena—it had become a cosmic battlefield, a realm outside of time and space, where the very fabric of reality bent to the will of the two combatants. Goku's new transcendent form radiated a divine aura, blending True Ultra Instinct with the pure might of his Saiyan heritage. Opposing him, Rimuru's Genesis Omega: The Eternal Core pulsated with absolute existence, making him a force beyond comprehension.

For a brief moment, there was silence.

Then—

BOOM!

They clashed again, their movements so fast that only Whis, Beerus, and a handful of the strongest beings in the audience could follow.

Each strike generated massive shockwaves, sending ripples through space itself. Entire planets that were caught in the wake of their battle dissolved into energy, unable to withstand the sheer force of their blows.

Goku vanished, appearing behind Rimuru with an instinctive counterattack—but Rimuru's body shifted dimensions just before impact, his form becoming untouchable for a split second.

Before Goku could react, Rimuru reappeared at his side, unleashing a sword strike with Moonlight Edge.

SLASH!

A cut appeared on Goku's chest, glowing with divine energy that momentarily disrupted his aura.

Goku backflipped, barely avoiding a second strike, then countered with a powerful Kamehameha at point-blank range.

"KAAA—MEEE—HAAA—MEEE—HAAAAAAAA!!!"

The entire void was engulfed in the blast.

But as the energy wave tore through space—

Rimuru raised his hand.

"Absolute Nullification."

The Kamehameha stopped mid-air, dissolved into nothingness, erased from existence.

Goku's eyes widened. "Whoa—did you just erase my attack?"

Rimuru smirked. "Did you really think a simple energy wave would work?"

Goku grinned. "Then I'll just hit you harder!"

He flashed forward with blinding speed, launching a barrage of devastating punches and kicks. Each hit connected, sending Rimuru flying through the shattered dimensions.

But before Rimuru could regain his footing—

Goku was already waiting.

A massive Ki sphere formed in his hands, pulsating with pure destructive energy.

"Kame Burst!"

Goku unleashed the devastating energy wave, combining Saiyan might and the principles of destruction energy.

The blast collided with Rimuru, warping the very essence of space-time as it detonated.

BOOOOOOOM!!!

For a moment, all was silent.

Then, from within the destruction—

A blinding golden light erupted.

Rimuru stepped forward, completely unharmed, his aura even stronger than before.

"Nice move. But you'll have to do better than that."

Beerus smirked. "Now this is a real fight."

Whis chuckled. "Indeed. Both of them are beyond logic at this point. Their battle is no longer about who is stronger—it's about who can push themselves further."

Goku wiped the sweat from his brow. "Alright. No more holding back."

His Ki spiked once more, his body glowing even brighter.

His voice became calm, but absolute.

"True Ultra Instinct—Full Mastery."

His hair shifted, flickering between silver and gold, his aura now weightless yet overwhelming.

The sheer presence of his power distorted reality itself.

Rimuru narrowed his eyes. "Fine. Then I'll match you."

His golden aura turned deep blue, and then—

A second Rimuru appeared.

Goku's eyes widened. "What?!"

"Genesis Omega: Absolute Duality."

There were now two Rimurus, identical in power, speed, and skill.

"Try keeping up."

Both Rimurus attacked simultaneously, overwhelming Goku with sheer speed and precision.

One Rimuru used Drago Nova, a massive magical explosion, while the other used Moonlight Edge to strike at Goku's blind spots.

But—

Goku moved like the wind.

His body reacted on its own, dodging everything perfectly.

BOOM! BOOM! BOOM!

Explosions filled the void as the three fighters clashed, breaking the very foundation of the tournament space.

"Kamehameha Overdrive!!!"

Goku unleashed his strongest Ki blast, enhanced with the raw energy of True Ultra Instinct.

But Rimuru did something unexpected.

He opened his mouth.

And devoured the attack.

Goku blinked. "Wait—you just ATE my Kamehameha?!"

Rimuru grinned. "Yup. And now…"

He thrust his hands forward, returning the attack ten times stronger.

"Infinite Kamehameha!!!"

Goku barely had time to react.

BOOOOOOOOOM!!!!

A massive shockwave erupted, sending Goku crashing through multiple layers of space.

For a moment, all was still.

Then—

From the wreckage—

Goku stood up.

His body battered, bruised—but his eyes… they were sharper than ever.

He smiled.

"Heh. That was awesome."

Rimuru smirked. "Had enough?"

Goku clenched his fists, his aura still burning brightly.

"Nah. But I think we both know—this fight isn't about winning."

Rimuru nodded.

At that moment—

Beerus stood up.

"That's enough."

Instantly, the battle space stabilized.

Both fighters relaxed their stances, their auras slowly settling.

Beerus smirked. "I've seen enough. This was the battle I wanted."

Whis chuckled. "A true test of limits. And both of you have exceeded expectations."

Goku and Rimuru faced each other once more.

Then, they both smiled.

"We have to fight again someday," Goku said.

Rimuru extended his hand. "Agreed."

They shook hands—

And the arena erupted into cheers.

The battle had ended. But the legend had only just begun.