One Piece: The user of the Nen-Nen Fruit, who overturned the sea.

"Click click click!!!"

The black line was as thin as a hair, but wherever it passed, space shattered.

It's not a metaphor; it's literally about being shattered.

Where the black line passed, the space appeared as if it were shattered glass, with countless fine cracks appearing.

The edges of the crack revealed a deep, dark void—that was what the other side of space looked like.

There was no light, no matter, only pure emptiness.

"Sizzle sizzle sizzle—"

The sound of space being cut was sharp and piercing, like someone scratching a blackboard hard with their fingernails, or like the wailing of metal being forcibly torn apart.

The black line, carrying with it black and red lightning of the color black, spread toward the defensive wall of the Knights of God at a seemingly slow but actually extremely fast speed.

The first thing to come into contact with the black lines was the armor of the Rock-Rock Fruit user.

The rock armor that was strong enough to withstand the bombardment of warships was like paper in front of the Black Line, and it was cut in half in less than a second.

The rock-elemental user watched in horror as his armor split open, the cut as smooth as if it had been slashed by a laser.

Next comes the defense of liquid ability users.

His body transformed into liquid in an attempt to absorb the impact of the black lines, but when the black lines passed through the liquid, a large portion of the liquid was directly swallowed up by the spatial rift.

The liquid ability user screamed as he exited his elemental state, a deep, bone-revealing wound appearing on his chest—

The spatial rift swallowed a part of his body, and that part could not regenerate in his elemental state.

The fire shield was cut open.

The shield of light was cut open.

Everything that stood in the way of the black line was cut through.

Shamlock's Overwhelming Slash collided with the black lines.

The moment the two Conqueror's Hakis collided, the entire Marineford region trembled.

Shamlock gritted his teeth and desperately activated his Conqueror's Haki, trying to deflect the black lines.

But the black line only paused slightly, and then—continued moving forward.

Shamlock's entanglement was forcibly severed.

"How is this possible—!!!" Shamlock's eyes were filled with disbelief.

But the black line doesn't stop because of his disbelief.

It pierced through all of the Knights of God's defenses with unstoppable force, and slammed into the center of their formation.

The two members of the God's Knights standing at the front were hit head-on by the black line.

Their bodies were neatly cut apart at the waist, and they even maintained a defensive posture the moment their upper and lower bodies separated.

Fresh blood gushed out from the cut, forming two huge clouds of blood mist in the air.

The black line continues to move forward.

The third member had his left arm severed, and the fourth member had half of his shoulder cut off.

The fifth person barely managed to dodge to the side, but was still grazed on the side by the black line, leaving a deep wound that exposed the bone.

Shamrock dodged at the last moment, the black line grazing his cheek.

They left a bloody gash on his face and then shaved off a lock of his hair.

The black line continued its relentless advance, flying towards Satan, behind the Knights of God.

Satan raised his scepter, and with all eight spider legs exerting force simultaneously, his massive body shifted to the side at a speed disproportionate to its size.

The black lines grazed his body, severing the two spider legs on his left side.

The two spider legs were still twitching when they were cut off, and black blood gushed from the cuts, dripping onto the ice and burning smoking holes.

Then—the black line finally disappeared.

It disappeared in the direction of Marineford Harbour, leaving behind a straight crack several kilometers long in the sea.

The crack was no wider than a finger's width, but its depth was unfathomable. Seawater poured in from both sides of the crack, forming two opposing waterfalls.

The whole world is quiet.

Everyone—the navy, the pirates, and the members of Beehive Island—stared blankly at the spot where the black line had passed.

The bodies and wounded members of the Knights of God lay scattered haphazardly on the ice.

The two men, who had been cut in half at the waist, were already dead, their bodies still twitching slightly in pools of blood.

The three wounded men were clutching their wounds and groaning in pain.

The remaining seven men were still able to stand, but the fighting spirit in their eyes had been largely replaced by fear.

A knife.

With a single strike, the defenses of the twelve members of the Divine Knights were instantly destroyed.

Roy stood in mid-air, the black and red lightning on Qiushui Blade still crackling.

His expression was as calm as if nothing had happened. He simply hoisted Qiu Shui back onto his shoulder and looked down at the horrific scene below.

"You stinky guy, you're asking me if all I do is hide?"

Roy tilted his head, a slight smile appearing on his lips.

"Now you know—I'm not just good at hiding, I'm just too lazy to make a move."

Shamlock stood on the ice, blood still seeping from the cuts on his face.

His fingers, gripping the knife hilt, trembled—not from fear, but from anger and humiliation.

He cultivated for ten years, all for the sake of being able to fight Roy.

As a result, the opponent only needed one strike to completely shatter his and the entire Knights of God's defenses.

"Roy..."

Shamrock squeezed out two words through clenched teeth.

Roy ignored him, his gaze passing over Shamrock and landing on the two spider legs behind him that were still twitching.

Satan stood in a pool of blood, black blood still seeping from the severed ends of his spider legs.

He looked down at his wound, then looked up at Roy, and for the first time, a hint of emotion other than arrogance appeared in his deep-set eyes.

That was fear.

Satan looked down at his two severed spider legs, black blood still seeping from the cuts.

He has lived for eight hundred years. This body has experienced countless battles and suffered countless injuries, but each time he can recover completely thanks to that mysterious power.

But this time is different.

The Conqueror's Haki contained in Roy's strike remained in the wound.

Like countless fine needles, it continuously eroded the surrounding tissue, hindering the black transformation power within his body from repairing the wound.

He could feel that force continuing to wreak havoc, and although it wasn't fast, it was definitely preventing him from regenerating.

"This level of Conqueror's Haki..."

Satan Saint raised his head and looked at the young figure in mid-air.

He had witnessed Rocks' Conqueror's Haki before; that man's aura was indeed terrifying, but it was more about wildness and destruction.

Roy's Conqueror's Haki is different—it is more refined and precise, as if it has been precisely controlled by some kind of force.

The psychic fruit.

Satan silently recited the name of the fruit in his mind.

Back then, this fruit was only labeled as "Paramecia type" in the World Government's Devil Fruit encyclopedia.

No one knew that awakening would make them this terrifying.

If only I had known...

Unfortunately, there is no such thing.

In mid-air, Roy put Qiu Shui down from his shoulder and glanced down at the miserable state of the Knights of God below.

The two men he had cleaved in two were lying in pools of blood, their bodies completely severed.

But strangely, wisps of black mist were emanating from their wounds.

Roy raised an eyebrow slightly.

He knew what it was—the Black Domination, the power that the mysterious Im had granted to the high-ranking Celestial Dragons.

Through a special mark, the recipient can automatically repair their body when they suffer fatal damage, which is equivalent to having an extra life.

However, turning black is not invincible.

Roy had already gained a considerable understanding of the mechanics of the Black Transformation when he fought against the Knights of God.

The key is--

Wherever the mark of the blackening is etched, that is its weakness.