Chapter 13: 13
The Oni's Wrath
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The battlefield was a wasteland of shattered stone and debris. Nnoitra stood triumphant, his monstrous Resurrección form gleaming in the dim light. His six scythes twirled menacingly, the deadly weapons dripping with Naruto's blood.
The boy layed on the ground, his grip on Nozarashi slack. Blood dripped from a dozen wounds, and his breathing was ragged. Yet, despite his condition, his crimson eyes still burned with unyielding defiance.
"You're done, brat," Nnoitra sneered, stepping closer. His eyes glinted with malicious satisfaction. "You fought well for a worm, but this is where you die."
Naruto tried to rise but collapsed again, his body refusing to cooperate. His mind swirled in frustration and anger. He didn't care about winning or losing. All that mattered was the fight, and the fact that it wasn't over. Not yet.
"Get up, Kenny!" a voice rang out in his mind, sharp and fierce. It wasn't his own.
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Naruto's Inner World
In the endless black void of his subconscious, Yachiru stood before him. She crossed her arms, her small frame radiating a wild energy. Her usually playful demeanor was gone, replaced by an intensity Naruto had never seen before.
"You're embarrassing me out there!" she barked.
Naruto blinked, confusion mixing with his frustration. "What the hell are you talking about?"
"I'm talking about you crawling on the ground like some bug," she snapped. "You're Kenpachi! You don't crawl, you fight! You destroy!"
Naruto snarled, baring his teeth. "I'm trying, damn it! He's..."
"He's nothing!" Yachiru interrupted, pointing a finger at him. "You've got power, Kenny. Real power. You just don't know how to use it yet."
Naruto glared at her. "Then show me!"
Yachiru grinned, her fierce energy shifting into something more playful. "Now you're talking." She stepped closer, her form starting to glow. "I'm only doing this once, so don't waste it, got it?"
Before Naruto could respond, her body dissolved into streaks of light, the energy spiraling toward Nozarashi.
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Back on the Battlefield
A massive surge of energy erupted from Naruto's fallen form, forcing Nnoitra to step back. The ground beneath Naruto cracked and splintered as his reiatsu exploded outward, shaking the battlefield.
Naruto's body convulsed as the transformation took hold. His muscles bulged, his skin turned crimson, and jagged black markings spread across his body like cracks. His eyes glowed with a savage light, and a pair of horns jutted from his forehead, curling slightly like an oni's.
Nozarashi transformed in his hands, the massive axe-cleaver shortening and taking on a jagged, brutal appearance of a rough cleaver.

Naruto threw his head back and roared, the sound echoing across the battlefield like the cry of a beast unleashed."HAAAAAAAAAAGGGGHHHH!"
Nnoitra watched in stunned silence, his scythes trembling in his hands. "What... the hell are you?"
Naruto didn't answer. With a guttural growl, he charged, closing the distance in an instant.
---
Naruto's newfound power was overwhelming. He moved with wild, untamed speed, each swing of his cleaver shattering the ground and sending shockwaves through the air.
Nnoitra fought back with everything he had, his six scythes whirling in a deadly dance. But no matter how many times he struck, Naruto pressed forward, his jagged blade carving through the Espada's defenses.
"You think this will stop me?!" Nnoitra roared, his voice tinged with desperation. He fired a barrage of Ceros, each one powerful enough to destroy a building.
Naruto roared in defiance, cleaving through the blasts as if they were nothing. His berserk state drove him forward, unrelenting and unstoppable.
Blood sprayed through the air as Naruto's blade connected, severing two of Nnoitra's arms. The Espada screamed in pain, staggering back as his remaining scythes flailed wildly.
"You bastard!" Nnoitra hissed, his golden eyes filled with fury. He raised his hand, blood dripping from his palm. "Fine! If I'm going down, I'm taking you with me!"
Using his own blood as a catalyst, he began to form a Cero Oscuras.
Naruto snarled, his horns gleaming as his reiatsu flared. He gripped his cleaver tightly, his eyes locked on the Espada.
"Die!" Nnoitra roared, firing the Cero Oscuras with all his might.
Naruto charged straight into the blast, his cleaver raised high. The energy tore at his body, but he pushed through, his roar drowning out the sound of the explosion.
With a final, earth-shattering swing, he cleaved through the Cero Oscuras.
From the distance Naruto cuts through Naruto's Hierro.
The Espada froze, his eyes wide with shock. Blood poured from the wound as he staggered back, his scythes falling from his hands.
"N... no... this can't be..."
Naruto stood over him, his body trembling from the toll of his Bankai. Despite the cracks forming across his crimson skin, he raised his blade for one last strike.
"RAGHHHHHHH!," Naruto growled
With a final, devastating swing, Naruto's cleaver tore through Nnoitra's body, splitting him in two.
The Espada's remains collapsed to the ground, his dark eyes dimming as his life faded.
---
Naruto stood amidst the carnage, his breathing ragged and uneven. His Bankai began to fade, the crimson hue of his skin returning to normal as the jagged blade reverted to its original form.
He stumbled, his body wracked with pain, but refused to fall. The battlefield was silent, save for the distant echo of his final roar.
The fight was over.
Tbc