One Piece: With Sign-in System

Sensing the deadly aura radiating from Ron—

"ROAR!!"

The black dragon circling in the sky let out a deafening roar that shattered the tense silence.

Its jaws parted, unleashing a blinding beam of destructive energy—a dragon's breath that split the sky as it surged downward like an avalanche, hurtling straight toward Ron.

And yet, Ron didn't move.

The attack was like the judgment of the gods, set to obliterate everything in its path, descending toward him with unstoppable momentum.

Then—

A mighty slash, coated in Haki and surging with immense force, came slicing through the air from the distance.

BOOM!

It tore through the dragon's breath mid-air, splitting the attack apart like a blade through smoke.

Everyone turned in shock.

And when they saw who had arrived—

There stood Red-Haired Shanks, sword in hand, with Benn Beckman calmly at his side.

Gasps erupted across the battlefield.

"One of the Four Emperors—Red-Haired Shanks!"

Even Sengoku and Kong, who had seen their fair share of storms, were visibly stunned. The Five Elders' expressions twisted in disbelief.

Nobody—not the Marines, not Ron's allies—had expected this. One of the Four Emperors had stepped onto the battlefield. And not just anyone—Shanks himself.

One of the Five Elders beside Imu couldn't hold back and roared in fury, "Shanks! You dare side with them?!"

Shanks looked up at them with a cold, sharp gaze. His voice was calm but carried the weight of a crashing tide.

"Siding with them? You make it sound like I was ever on your side."

He raised his sword slowly, pointing it directly at the grim-faced Five Elders.

"Don't get it twisted. I'm a pirate. A pirate who sails for freedom. I was never your ally."

"You—!"

Rage twisted the faces of the Five Elders as they glared at him, their killing intent tangible in the air.

"Should've eliminated all pirates from this sea back when we had the chance!"

"And you're only realizing that now?" Beckman sneered, a cigar between his lips. His eyes were calm but full of challenge. Raising his silver rifle, he aimed it straight at the one who spoke.

"Don't move."

"What did you just say?!"

The Elder—clad in a black suit, wearing a hat, with a bushy white beard and curled hair—laughed coldly, his fury boiling over.

"A mere pirate... giving me orders?!"

A terrifying aura burst out from his body as he stomped forward, disappearing in a flash.

But Beckman was ready. His Observation Haki surged to its peak, glimpsing the future. In a split second, he fired.

A bullet, wrapped tightly in Armament Haki, shot straight for the Elder's forehead as he reappeared.

The Elder's eyes narrowed. With a single finger, he struck.

"Hell Finger Gun."

The sheer power of the strike formed a compressed air cannon that shattered the bullet mid-air.

But Beckman was already moving.

With a blur of speed, he appeared above the Elder, now wielding both his blade and rifle. His left hand brought down the sword in a slash drenched in Haki.

"Heavenly—Paper Art."

Like a sheet of paper in the wind, the Elder's bulky body twisted impossibly, dodging the attack at a wild angle. Beckman's slash instead struck the ground, carving a hundred-meter-long fissure into the earth.

Beckman's eyes narrowed.

Now he understood.

This Five Elder wasn't just strong—he had mastered all three forms of Haki, and wielded a technique beyond the known limits of the Six Powers used by the Marines.

Meanwhile, the long-haired Elder with white hair beside Imu gave her a respectful nod—then stepped forward into the battlefield, clashing blades with Dragon.

He wielded the Void-Void Fruit, a superior version of the Door-Door Fruit—granting him dominion over space itself.

The bald Elder with a sword and a stern gaze went head-to-head with Rayleigh, his swordsmanship impeccable, every move laced with master-level Haki.

The blond Elder, a brute in hand-to-hand combat, had Armament Haki refined to the third and most advanced stage. He charged into battle against Zephyr, fists clashing with thunderous impact.

Then came the Elder with the curved mustache—a user of a mythical Zoan fruit: Dragon Turtle, fully awakened. His massive frame radiated unbreakable defense, and he launched orbs of devastating energy from his maw.

He now clashed with the fully transformed Kaido, their every strike shaking the battlefield.

For the first time ever, the Five Elders—those enigmatic figures atop the world—revealed their true power to the world.

Each of them was a monster in their own right.

Amidst the chaos, Admiral Akainu battled Fujitora, Marco the Phoenix, and Ace the Fire Fist all at once.

But with Fujitora now standing beside Ron, the scales had shifted.

The once-dominant Akainu now found himself slowly being pushed back.

…

Injured from his fierce clash with Kaido, Aokiji now found himself cornered by both Boa Hancock and Kuina. Hancock's devastating barrage of blows rained down like a tempest, while Kuina's relentless sword aura shredded through his freezing techniques. The two women overwhelmed Aokiji, leaving him no chance to assist his allies.

On another front, Sabo and Bartholomew Kuma were holding their own against Sengoku. Shockwave clashed against shockwave in a cataclysmic exchange, and Sabo's Glint-Glint Fruit kept Sengoku on edge. The legendary Marine was slowly being pushed back.

Meanwhile, Red-Haired Shanks strode toward Ron. Glancing up at the black dragon coiling above the battlefield, he calmly said, "I'll take care of that dragon. Don't you dare lose."

With that, he stepped forward, then launched himself high into the air, sword in his single hand. Among the floating fragments of Mary Geoise's shattered isles, Shanks soared toward the black dragon, ready to strike.

"Don't lose, huh…" Ron tightened his grip on the blood-red blade in his hand, his gaze fixed on the abyss-like figure of Imu ahead—so dark, so deep, it seemed to devour all light. The corners of his mouth lifted ever so slightly.

"I've never even considered losing."

…

At this very moment.

The holy land of Mary Geoise had become a cataclysmic warzone. The fiercest combatants from across the seas were engaged in battles that cracked the skies and split the earth. Every technique, every attack, was brimming with overwhelming power and infused with intense Haki. Crimson lightning born from these violent collisions arced across the heavens in all directions.

Above the battlefield, within the sky littered with floating boulders, one man and one dragon waged an earth-shattering battle. Sword slashes laced with Conqueror's Haki collided against blasts of explosive dragon breath, staining the heavens a deep blood-red. Ripples of black shockwaves tore through the sky, spreading out from the summit of the Red Line and echoing across the world.

Everyone could feel it—the Holy Land was collapsing.

With CP0's leader Zero defeated by Dragon… with Commander Kong sent flying by Kaido… with Admiral Fujitora defecting… and now, the Red-Haired Pirates showing up out of nowhere…

They'd already played every card they had, yet they were still being pushed back.

They were losing.

…

Sabo suddenly reappeared beside him in a flash and launched a radiant side kick.

Boom!

Sengoku was knocked back dozens of meters.

Gritting his teeth, he stared furiously at Sabo and the towering figure of Kuma. Damn it!

He could already feel his stamina fading at an alarming rate. It wouldn't be long before he could no longer sustain his golden Buddha form.

And Kong… Kong likely didn't have the strength left to return to battle either.

If any new reinforcements appear on their side…

No—

A sudden jolt ran through Sengoku's mind.

If stamina was factored into the equation, then this battle wasn't even balanced anymore—the scale was tipping.

And it was tipping toward their enemies.

Are we… actually going to lose?

His fists clenched.

No.

Not yet.

There was still hope!

Sengoku's eyes turned to a distant part of the battlefield.

There—

Ron and Imu stood a hundred meters apart, facing each other across a silent, empty space. In the midst of chaos, their presence created an eerie stillness, a space disconnected from the rest of the world—like a pocket of silence within a storm.

Sengoku's gaze locked onto them, and a spark of hope flickered in his eyes.

If that mysterious being—the one even the Five Elders revered—could win this duel…

Then this war… could still be theirs.

At last—

Imu made her move.

She lifted her longsword and slashed toward Ron from afar.

There was no sword aura. No air pressure. No sound.

It was as if… nothing had happened.

And yet, Ron vanished from where he stood.

The next moment—

The building behind where he had been was neatly bisected, a clean cut running diagonally through its structure. Farther behind it, even the sky itself showed a razor-thin tear stretching for kilometers, like an invisible blade had swept through heaven and earth.

Everything in the path of that attack had been sliced in two without a sound.

"…Your swordsmanship," Ron appeared at Imu's side, Blood Moon in hand, his bright blue eyes narrowed. "There's a trace of space… no, spacetime in that strike."

"If I'd taken that head-on… things might've gone very badly."

Imu turned her head, and in her lifeless, deathly gaze, a flicker of surprise surfaced—she hadn't expected him to evade that strike.

"You've lived too long," Ron said coolly. "All that power… but no finesse?"

Then—

He slashed his blade.

A crimson flash tore through the air.

In that instant, a web of blood-red threads shimmered into existence, weaving into an intricate net of death. These energy threads raced toward Imu like a storm of razors, intent on slicing her into pieces.

Imu didn't draw her blade again.

But in her dead eyes, a ghostly gleam flickered—

Something… terrifying.

The space around her began to twist and warp in a bizarre fashion—like countless overlapping whirlpools beneath a glassy ocean surface.

The blood-colored web of sword energy that Ron had unleashed fell into that distortion. But instead of striking her, it vanished completely, pulled into the swirling paths of those spatial vortices and cast into an endless void.

It couldn't touch her at all.

Watching this unfold, Ron's thoughts sharpened. The nature of her powers… he was becoming more certain now.

A Devil Fruit ability—most likely related to "distortion."

Just as he was about to use his advanced Observation Haki to peek into a sliver of the future, he realized something chilling: the future was hazy, clouded—almost completely obscured. Even with his advanced Observation Haki, it was like trying to see through a wall of fog.

At that moment, Imu raised her free left hand and swung it in Ron's direction with a casual yet chilling grace.

In front of Ron, the air itself began to shatter, like layers of fragile glass under immense pressure, collapsing inward toward him as if sucked in by some terrible gravitational force. That ominous distortion hurtled toward him.

Ron's instincts flared. Essence of Strength: Level 5—activated.

He swung his blade violently.

A massive crimson slash—thick, brutal, and pulsing with Armament Haki—burst forth in a circular arc from around him, spreading outward in every direction. The sheer force of it slammed against Imu's distortion.

The two incredible powers collided.

And for one brief instant… all was silent.

Then—

BOOOOOM!

An earth-shattering explosion ripped across the battlefield!

A monstrous shockwave tore out from between them, devastating everything in its path. The ground beneath them began to cave in, cracking apart. Massive boulders floated upward into the air—only to disintegrate into dust a second later.

When the dust settled, the area between them was completely gone.

Where once there had been solid earth, now yawned a deep, endless chasm—an abyss that seemed to sever the very world in half. Ron and Imu stood on opposite sides of it, their blades in hand.

And above them…

A colossal scar had split the sky, stretching tens of thousands of meters long. In its depths, golden lightning and crimson arcs of Conqueror's Haki clashed and twisted, illuminating the heavens with their furious duel.

The scene was utterly breathtaking—a clash of titans in a world that could barely contain them.

"You…" Imu's lifeless eyes locked onto Ron, and for the first time, her voice broke the silence.

"You are not of that bloodline… but you are dangerous. You… must… be erased."

Her voice was youthful—yet there was something ancient buried within it, something weathered by centuries.

She had existed for over 800 years. Even if her body remained immortal, her thoughts, her soul… had long since decayed.

Only one mission kept her tethered to this world:

To erase the lineage of that clan.

To eliminate anything… or anyone… that could threaten the World Government.

-------------------------

T/N: Hey guys, I have started a new fanfic today, One Piece: Silent-Silent Fruit. Do check it out ;)