One Piece: The Strongest Trait System

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BOOOOOOOOOOOOOOOOOM!

A seemingly unremarkable fist appeared before Akainu's magma fist.

For a moment, the magma fist was stopped dead in its tracks!

"Hm??" Akainu looked up, seeing the owner of the fist, and how he had appeared from an Air Door—his forehead instantly beaded with sweat.

The Door-Door Fruit.

An unforgettable Devil Fruit power!

The one that brought a catastrophic defeat upon the Super Buster Call he led. 'That man... he really came to this battlefield!'

And... Straw Hat. The power he possessed was... Akainu stared at the fist blocking his, his eyes filled with utter disbelief—

CRACKLE! BOOM!

Violent, tyrannical crimson-black lightning roared furiously around Luffy's right fist!

"I'M HERE TO SAVE YOU, ACE!" Luffy roared, looking up at Ace on the execution platform.

BOOM!

With Luffy's roar, the violent crimson-black lightning coiling around his fist roared even more furiously!

Thump! Thump! Thump!

Centered on Luffy, the surrounding Marines fighting the pirates went white-eyed and collapsed in droves!

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"LUFFY!!!" Ace screamed in horror, seeing Luffy appear on the battlefield, blocking Akainu's magma fist!

His little brother had come to this terrifying battlefield to save him!

Gratitude, worry, guilt—countless feelings overwhelmed Ace. He, the older brother, had fallen into this predicament due to his own recklessness, yet now his little brother had to risk his life, coming here—to what could be called the most terrifying battlefield in the world!

—But what shocked Ace most was the ability Luffy now displayed.

That power capable of blocking the Magma-Magma Fruit, radiating violent, tyrannical crimson-black lightning!

The power that knocked out countless Marines.

As a 2nd Division Commander of the Whitebeard Pirates, and someone who also possessed the aptitude for this power—Ace was certainly no stranger to it!

This power was—

"H-Haōshoku Coating??" Marco stared at Luffy, who had just saved Haruta, his eyes wide with horror.

Haōshoku Coating!

A feat only a handful of the strongest individuals on these seas could achieve. Those who fully mastered this power were all absolute rulers on the seas.

Capable of reigning as Emperors in the New World!

His own Pops, Whitebeard—aside from his Tremor-Tremor Fruit—was hailed as the World's Strongest Man precisely because of this power.

The new Emperor, Sky Sovereign Rowen was acknowledged by the sea as a true Emperor only after fully mastering this power!

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"How scary~ To block Akainu's attack," Kizaru commented, though his tone held none of its usual teasing quality. Even he had to take this power seriously.

More importantly, that method of arrival was that man's Devil Fruit.

The ability of the World's Strongest Devil Fruit User.

Kizaru's hands, usually casually in his pockets, now hung at his sides, ready to condense the power of the Glint-Glint Fruit at a moment's notice.

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"Hey, hey, are you serious," Aokiji's forehead also beaded with cold sweat.

This rate of growth was too fucking fast!

Back on Thunder-Ice Island, during his fight with Straw Hat, the brat was no match for him. Though Straw Hat surprisingly possessed decent Armament Haki then, it couldn't block the freezing aura of his Ice-Ice Fruit.

If he hadn't been showing face to Garp and was just testing Straw Hat's strength, he could have frozen him instantly.

But this power now was on a completely different level!

More critically—Straw Hat arriving via the Door-Door Fruit ability meant that man behind him was also here.

The man who had taken his leg and buried Thunder-Ice Island forever...

Aokiji's expression was incredibly grim.

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"Luffy??" Garp gasped in horror upon seeing his grandson arrive. As expected. That brat really did come to this battlefield!

"STRAW HAT!!!" Sengoku stared at Luffy, veins throbbing on his forehead, gritting his teeth. His brow was also slick with sweat.

Straw Hat preliminarily mastering Haōshoku Coating was surprising, but not fatal to the overall battle. What made Sengoku incredibly tense—was the man standing behind Straw Hat.

That open Air Door proved that Rowen had also arrived near this battlefield!

The worst-case scenario was really beginning to unfold.

Sengoku's heart felt incredibly heavy.

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On Sabaody Archipelago, the civilians and reporters staring intently at the massive screen, seeing Luffy block Akainu's attack, were now drenched in cold sweat. Some even collapsed to the ground in terror.

"Q-QUICK! CONTACT HQ! PREPARE A SPECIAL EXTRA EDITION! A MAJOR DEVELOPMENT IN THE WAR!" Some reporters scrambled to contact their respective newspaper headquarters.

"Th-This man has appeared... The war is about to escalate!"

Some reporters' notebooks dropped from their nerveless hands, their faces filled with horror.

"It's the man with the 1,035,000,000 Beri bounty. 'Straw Hat' Monkey D. Luffy!" Terrified voices began to rise above Marine HQ.

And the real reason for this terror, among these elite Marines—and on Sabaody Archipelago, throughout the world, was...

"STRAW HAT HAS APPEARED. IT'S THE DOOR-DOOR FRUIT!"

"QUICK! CONFIRM THAT MAN'S LOCATION!"

"THE NEW EMPEROR OF THE SEA! THE WORLD'S STRONGEST DEVIL FRUIT USER!!"

"WHERE IS SKY SOVEREIGN ROWEN???"

Horrified shouts echoed constantly from the Marine HQ lookout posts.

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"That man came too?" Mihawk's eyes narrowed, his hawk-like gaze, enhanced by Observation Haki, rapidly scanned the battlefield.

Less than a year had passed since their parting in the East Blue. Rowen had become a publicly acknowledged new Emperor of the Sea.

Even Mihawk, who had clashed Conqueror's Haki with Rowen before and had full confidence in his future, couldn't help but marvel at his ridiculously fast rise.

Rowen was no longer the one from East Blue, who had to rely on Shanks's 'face' to clash Haki with him just to see how vast the world was...

Now, in an all-out battle—whether he himself was Rowen's match—was an uncertain question.

Rowen had become a figure capable of influencing the entire world!

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"Thump-thump! Thump-thump!"

Hancock clutched her chest, feeling her heart beat incredibly fast.

That man... he really came!

The man she had yearned to meet...

The man who orchestrated the Mariejois incident, who showed the world that even Celestial Dragons could be knocked out by Haki... had really come!

"M-My heart is beating so fast?" Hancock murmured, her slightly dry red lips parted, her beautiful eyes rapidly scanning the battlefield.

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"SKY SOVEREIGN ROWEN!" Fine beads of cold sweat covered Doflamingo's forehead, his back now soaked.

The Emperor who had publicly 'reserved his head' during the Warlord meeting—had come to this battlefield!

Doflamingo scanned the battlefield, not seeing Rowen's figure, and breathed a small sigh of relief.

Seeing Aokiji, Kizaru, and even Fleet Admiral Sengoku ready for battle, Doflamingo's wicked smile returned.

HE WAS A WARLORD!

And more importantly, all of Marine HQ's forces were here!

So what if Sky Sovereign Rowen was strong???

With so many Admiral-level combatants here, killing him wouldn't be so easy!

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"Gurarara! Ace's little brother, is it?" Whitebeard laughed, seeing Luffy block Akainu's attack.

Straw Hat was often the topic of Ace's conversations.

When Straw Hat first got a bounty, Ace hadn't yet set out to pursue Teach, at that time, Ace had excitedly shown him Straw Hat's wanted poster, boasting about his proud little brother—

—Though he had never met him, both he and his many sons felt a sense of familiarity with Straw Hat because of Ace.

Now, seeing him in person... truly worthy of being Ace's brother!

Young—yet, he boldly came to this battlefield to rescue Ace. And he had preliminarily mastered Haōshoku Coating, his strength even surpassing Marco's

And more critically, the Devil Fruit ability that brought him to the battlefield.

That ability to control space...

"The Door-Door Fruit?" Whitebeard murmured, his eyes flashing as he looked at the open Air Door.

After the Enies Lobby incident, this ability was known throughout the seas; he was no exception.

"That man came too? Sky Sovereign Rowen," Whitebeard thought, a sense of relief washing over him deep within.

He was old now. After removing his medical equipment, his body's deterioration was worse than he expected. Just using his Tremor-Tremor Fruit a few times left him feeling weak...

Whitebeard came to this battlefield with no intention of returning alive. Dying of sickness on the Moby Dick—was not a fitting end for Whitebeard.

His old rival, Roger, with his final words at his public execution, had started the Great Pirate Era.

How could he, Whitebeard, lose to his old rival?

Using this decrepit body to pave a new path for the younger generation—was the most fitting end for him.

But the prerequisite was—successfully rescuing Ace.

With his current physical deterioration, Whitebeard had no confidence. The gap in combat strength between the Whitebeard Pirates and Marine HQ was simply too vast. Just one Akainu was enough to overwhelm his sons. And Garp and Sengoku hadn't even made their move yet.

The chances of rescuing Ace were too low.

BUT NOW, THERE WAS HOPE!

Whitebeard's eyes rapidly scanned the area.

Not just the Navy... Whitebeard too was searching for Rowen!

WHOOSH! WHOOSH! WHOOSH!

Several Air Doors opened across the atmosphere.

"Let's go! Time for war!" Law led the Heart Pirates, charging out.

"Hmph. Whitebeard, Marine HQ, the Seven Warlords... what a scary battlefield. SURVIVE THIS, MY MEN!" Capone Bege chewed on his cigar, also charging out.

"Today is not my day to die..." Hawkins stated impassively.

"Damn it! Being used as a pawn really sucks! Can we even make it to the New World after this??" Urouge grit his teeth, charging into the battlefield.

Apoo followed close behind.

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"The Heart Pirates... The Fire Tank Pirates... The Hawkins Pirates... The On Air Pirates... The Fallen Monk Pirates!"

"THEY'RE ALL SUPERNOVA CREWS!"

"The Supernova crews under Sky Sovereign Rowen's command, aside from Bonney—have all arrived!"

The Marine lookout reported the battlefield situation in real-time.

"He really did bring these Supernovas under his command?" Sengoku muttered, veins throbbing on his forehead.

"GET OUT OF THE WAY!"

BANG!

An Air Door opened. Sanji, using his Diable Jambe, sent a Vice Admiral who was pursuing other pirates flying.

"Two-Sword Style Iai: Rashomon——!" Two terrifying slashes appeared, forcing another Vice Admiral back.

"SANDSTORM——!"

BOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOM!

A terrifying sandstorm appeared out of nowhere, sweeping up numerous Marine elites, including several Rear Admirals, into the sky!

"Desert Princess Vivi, 450 million Beri bounty, user of the Sand-Sand Fruit!"

"Black Leg Sanji, 550 million Beri bounty!"

"Pirate Hunter Roronoa Zoro, 600 million Beri bounty!"

"All great pirates who made their names alongside Sky Sovereign Rowen!"

Horrified reports continued to sound.

"Hmph! Don't forget about us—Thunder Tempo!"

BOOOOOOOOOOOOOOM!

A thundercloud appeared out of nowhere. The power of the Rumble-Rumble Fruit instantly caused terrifying casualties.

"SPECIAL ATTACK! FIRE BIRD STAR——!"

BOOM!

A horrifying flaming bird appeared out of nowhere, burning with fearsome flames, causing a horrifying fire. After Rowen's Flare-Flare Fruit Awakened, Usopp's Fire Bird Star had also evolved.

Following close behind were Robin, Brook, Franky, Chopper, Perona, Bonney, and—

"Warlord, Knight of the Sea Jinbe??"

A cry of disbelief rang out.

"Damn It! Jinbe! Have You Made Your Choice??" Sengoku roared, gritting his teeth.

"I am no longer a Warlord! Brother Ace. I'M HERE TO SAVE YOU!" Jinbe roared back.

"The Entire Straw Hat Pirates—Famous Across The Seas. Are Here!" the lookout's report echoed.

"REINFORCEMENTS HAVE ARRIVED!"

The pirates, who had been brutally suppressed by the Vice Admirals, felt their morale surge.

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"WHERE IS THAT MAN?? WHAT IS HE PLANNING??" Sengoku, however, felt a deep sense of unease.

VMM!

His eyes suddenly blazed with red light—Observation Haki, Future Sight, activated!

The next moment, Sengoku's face contorted in horror.

"BORSALINO! SAVE DOFLAMINGO! QUICKLY!" Sengoku's roar echoed.

"Huh??" Doflamingo's entire body was instantly drenched in cold sweat.

WHOOSH!

A transparent Air Door opened beside him!

WHOOSH!

Kizaru instantly elementized, but—

"Don't move, Kizaru!"

A sword was held at Kizaru's neck...

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