Rimuru and Ultima Goes To One Piece (Rimuru and Ultima x One Piece)

Chapter 23: The Fall of the Strongest

The intense clash between Rimuru, Ultima, and Whitebeard continued to shake the very foundation of Marineford. Each strike carried immense power, sending tremors through the air and ground as the titanic forces collided. Rimuru and Ultima, wielding the full strength of their advanced Haki, fought with a synchronicity that only years of battle together could foster. Their movements were fluid, perfectly timed, as they took turns attacking Whitebeard from different angles. Despite his age and the toll of the war, Whitebeard stood firm. His bisento cleaved through the air with devastating might, while the ground beneath him quaked with every tremor he unleashed.

"You've lasted longer than I thought, old man," Rimuru taunted, launching a barrage of Armament Haki-imbued punches toward Whitebeard.

Whitebeard blocked the onslaught with his bisento, gritting his teeth as he swung the weapon in a massive arc, sending shockwaves rippling outward. The sheer force of the strike sent both Rimuru and Ultima flying back several meters, but they landed gracefully, ready for the next assault.

Ultima wiped a trickle of blood from the corner of her mouth, her lips curling into a wild grin. "He's tough, I'll give him that. But he's slowing down."

Rimuru nodded, his sharp gaze fixed on Whitebeard. "He's not the same as he was at the start of this fight. We've pushed him close to his limits."

Whitebeard's chest heaved as he caught his breath, sweat dripping down his brow. His once-unstoppable strength was beginning to falter, the wear and tear of countless battles evident in the way his body moved. Yet even in this state, his presence was nothing short of overwhelming. Advanced Conqueror's Haki radiated from him in waves, a crushing pressure that brought even the most seasoned warriors to their knees. Marines and pirates alike collapsed, unconscious from the sheer weight of his will.

"Shichibukai..." Whitebeard's voice was a deep, rumbling growl as he leveled his gaze at Rimuru and Ultima. "You think you can defeat me just because I'm old? You don't understand what true power is."

Rimuru's grin widened, his tone mocking. "Old man, you're strong, but this battle's already decided. You just don't know it yet."

Whitebeard's eyes narrowed as he gripped his bisento tighter, muscles tensing in preparation for the next exchange. "I've heard those words before... from fools who didn't live long enough to regret them."

Ultima stepped forward, her fists crackling with the energy of her advanced Armament Haki. "You're just another fool to add to that list, old man."

And with that, the fight resumed. Rimuru and Ultima attacked from opposite sides, moving like shadows across the battlefield. Their speed was blinding, and their attacks were relentless, combining the brute force of Rimuru's strikes with the precision of Ultima's deadly blows. Whitebeard, though strained, fought back with the same indomitable will that had earned him the title of the world's strongest man. His bisento swung with earth-shattering might, and the ground trembled under his feet as he released tremor after tremor from his Devil Fruit ability.

But even Whitebeard, with all his might, couldn't keep pace with the unrelenting duo. Rimuru's fists crashed against Whitebeard's guard with bone-breaking force, each strike reinforced with advanced Armament Haki. Ultima's attacks were more tactical, her Observation Haki allowing her to exploit the slightest openings in Whitebeard's defense.

"He's weakening," Rimuru muttered as he dodged another tremor-infused strike that shattered the ground beneath him. "It's time to finish this."

Ultima nodded, her eyes gleaming with excitement. "Let's end this old man's reign once and for all."