One Piece: With Sign-in System

The ground of Thriller Bark rolled as if stirred by an earth dragon. Buildings swayed violently, collapsing and sinking as the ground split apart. Seawater surged into the southeastern region, and the massive sails above the island were shredded by the ferocious shockwave. The surrounding forests were flattened, and numerous zombies were swept away.

The central fortress shook under the force of the shockwave, cracking and crumbling as debris fell in all directions. Huge fissures radiated from the southeastern point, causing the ground and forest to break off and fall into the sea, sending waves crashing against the island's walls and triggering another tremor.

It was as if the end of days had come for the entire island.

"What… what should we do, Lord Moria?!"

Perona, dodging bits of debris midair, shouted in panic.

Moria stood motionless, staring at the southeast.

What should they do?

How would he know what to do?!

He didn't even understand what had just happened!

When the tremors subsided, the southeastern region of Thriller Bark was no more. The island had lost a quarter of its total area, with massive fissures threatening to split it into several sections. The central fortress was half-destroyed, and the flattened forest along with the outer walls were battered and broken by the relentless waves and shockwave.

The entire Thriller Bark was in ruins from that single attack.

Moria, accompanied by Perona, Absalom, and a group of General Zombies including Swordmaster Ryuma, arrived at the edge of the destroyed southeastern area.

There, they saw a young man with black hair, wearing black pants and a white hooded sweatshirt, walking slowly out of the massive, seawater-flooded crater.

Golden sparks still crackled on his right leg.

"Did it miss the mark slightly..."

Ron muttered to himself.

"The power was too concentrated, and it was my first time trying this move, which made it hard to control. I'll adjust next time..."

Was this terrifying attack really caused by this boy?!

Moria found it hard to believe.

"It's him, Lord Moria! He's the one I saw fly into the sky earlier!"

Perona pointed at Ron and shouted.

Moria had no choice but to believe it now.

"You... who are you?"

Moria stared intently at the black-haired boy. "Why are you attacking us?!"

Ron didn't look at him but instead fixed his gaze on Swordmaster Ryuma among the General Zombies.

"It was just a test. It has nothing to do with you."

Moria was stunned for a moment, then yelled:

"Huh?!!!"

"Just because of that, you're destroying my ship?! You wrecked my ship and say it's not related to me?!"

Ron glanced at him, replying, "Moria, don't you hunt pirate ships that come your way?"

Moria paused, caught off guard by the question.

Ron's calm gaze swept over them and their zombies before landing back on Moria.

"If you have an issue with it, feel free to come at me."

Hearing such arrogant words, Moria couldn't hold back.

"Unforgivable!"

He let out a shrill roar, "Attack him!"

Absalom vanished using his invisibility.

Several colossal animal zombies lunged at Ron, their jaws open.

Perona used her Devil Fruit ability, sending several ghostly projections flying towards Ron.

General Zombie Jigoro and Swordmaster Ryuma attacked simultaneously, unleashing two flying slashes at Ron.

Ron reached out and drew the famed blade Raikiri from the void.

Crackle.

Golden lightning coursed along Raikiri's blade.

"Thunder Breathing: Sixth Form – Rumble and Flash!"

Ron executed the technique with the mastery of a swordsman who had surpassed the realm of Cutting - Iron.

The power was magnitudes greater than before.

In an instant, countless arcs of golden lightning radiated outward from him, slicing everything in their path!

Jigoro's and Ryuma's slashes were overpowered and shattered.

The massive animal zombies were instantly cut into countless pieces.

Absalom, who had approached invisibly, retreated in shock, but it was too late. A blade of energy struck him, slicing his shoulder open and sending a spray of blood into the air.

Perona's ghostly projections, immune to physical attacks, couldn't ignore the Haki-infused slashes that threatened her. She recoiled and floated back, barely dodging the strikes, her face pale and sweating in fear.

"Damn it!"

Moria, massive and grotesque, roared and activated his ability.

"Bat Tornado!"

His shadow split into countless bats that swarmed toward Ron, aiming to entrap him.

Ron moved with a blur, vanishing from his spot and reappearing before Moria.

"What?!"

Moria's eyes widened.

Ron's expression remained calm as he swung Raikiri.

But the slash passed through Moria's body without impact.

"Shadow Substitute! Heh heh heh."

Moria sneered as he swapped places with his shadow. "Your attacks can't touch me!"

"Now! Take him down!" he shouted.

Jigoro and Ryuma attacked from opposite sides, launching simultaneous strikes at Ron.

A glint of excitement flashed in Ron's eyes.

Good!

Clutching Raikiri, he engaged the two formidable zombie swordsmen in fierce combat.

Raikiri's edge clashed against Ryuma and Jigoro's sword, both of which were also of the same distinguished grade. The clear sound of metal rang out repeatedly.

Flying slashes scattered from their clashes, sending waves of sword energy outward. Any zombie beast that dared approach was cut into pieces.

Perona, hovering above, tried to use her Devil Fruit power to trap Ron in a negative state. But even while battling the two powerful zombie swordsmen, Ron managed to evade her ghostly projections.

When the black-haired youth glanced at her, Perona felt a chill run down her spine, as if one more move would be the end of her.

She froze, terrified, unable to move.

"Three-Verse Humming: Arrow Notch Slash."

Ryuma, wielding Brook's shadow, performed one of Brook's techniques.

It was far from the true strength of the legendary swordsman.

"So, that's how it is."

Having gauged the limits of their power, Ron decided to stop holding back.

He wielded Raikiri with increasingly fluid and powerful strokes.

Each strike was imbued with the essence of cutting steel.

Raikiri clashed again with Ryuma and Jigoro's sword.

Clang!

A fierce sword light flashed.

The ground around them was carved into a cross-shaped pattern, and a building in front of them, struck by the sword energy, slowly slid apart at its upper half.

Along with the building, half of Jigoro's body and Ryuma's arm, fell.

"Yohohoho! Magnificent swordplay!"

Ryuma spoke with Brook's voice, blue flames flickering at his wound, consuming him until he vanished entirely, leaving only the dark shadows that fled into the distance.

Shusui (The Sword) remained on the ground.

Ron bent down and picked up the heavy, sturdy black blade.

"Looks like I snagged Zoro's future weapon and experience," he said with a grin.

Holding Shusui in one hand and Raikiri in the other, Ron turned to look at Moria.

"Do you still want to fight?"

Moria gritted his teeth, a bead of cold sweat dripping down his brow. Under the pleading eyes of Perona and the terrified zombies around them, he took a step back.

"A wise choice."

Ron nodded, and with Moria and Perona watching in fear, he sheathed both great blades and turned to leave.

When Ron's ship left the island's entrance, all that remained was a nearly ruined Thriller Bark.

"In the end, I don't even know who that guy is or his name… not even a target for revenge. What humiliation!"

Moria clenched his fists, his face twisted with rage.

Even if he used his Devil Fruit to its fullest and marshaled every person and zombie on the island, they would be no match for that monster!

"I have to finish turning Oars into a zombie soon! I need that power, no matter what!"

Moria snarled.

Meanwhile, on the ghost ship, Brook stared at his shadow on the ground and scratched his afro in confusion.

"Huh? My shadow… it's back?"

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