One Piece: The Marine of the Straw Hat Pirates

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"Oh, look at that, a pretty boy," one of the pirates sneered, nudging his crewmates. "Tie him up and present him to the captain. She'll reward us for sure!"

Two of the four pirates stepped forward, twirling their knives as they closed in on Ikki.

"Boy, surrender quietly. Don't worry, our captain has a soft spot for fresh meat like you—"

Before the pirate could finish his taunt, Ikki delivered a clean punch to his chest. But before his fist even connected, a burst of concentrated air pressure from Ikki's strike sent the pirate flying overboard. The crew watched in stunned silence as the man splashed into the sea and disappeared beneath the waves.

The remaining three pirates hesitated for a moment, then roared and charged at Ikki with their swords drawn.

A smirk tugged at Ikki's lips as a vortex of wind swirled visibly around his right arm. "Looks like you've chosen the hard way."

As the three pirates lunged, Ikki swung his arm in a wide arc. A powerful gust of wind exploded from his movement, knocking the pirates into the air and scattering them like leaves. They crashed to the deck and rolled unconscious, weapons clattering to the floor.

"Sky Dragon's Wing Attack"

The wealthy passengers, who had been cowering moments earlier, now hurriedly gathered their families and bowed in gratitude. "Thank you! Thank you for saving us!"

Ikki waved them off casually. "No need to thank me. This is what private Marines are supposed to do."

"Private Marines?" The passengers exchanged puzzled glances. "Is there a Marine branch like that in the East Blue?"

"Don't worry about the details," Ikki said, gesturing for them to retreat. "Go find somewhere safe to hide. I'll deal with the rest of these pirates."

As the passengers scrambled to safety, Ikki's system chimed in:

[Defeated four pirates. Justice Value +4.]

Ikki's eyes lit up. So it works! The private Marine appointment letter Garp had given him was officially recognized by the system. That meant he didn't need to join the official Marines after all.

It wasn't that Ikki didn't want to join, but being a Marine would inevitably mean facing the darker side of the World Government—particularly the Celestial Dragons. With his principles, there was no way he could tolerate their cruelty. Sooner or later, he'd clash with Marine leadership, and his system would become useless if he were branded a criminal.

But as a private Marine, he had the freedom to uphold justice his way. And best of all, he could drag Luffy into it too—after all, his name was also on that appointment letter!

While Ikki mulled over his newfound opportunity, another system notification popped up:

[Justice Value +6.]

A sudden rumbling noise from the direction of the cruise ship's warehouse broke his thoughts.

"What now? Did Luffy just take out someone?" Ikki muttered, sprinting toward the noise.

...

When Ikki arrived at the warehouse, he found a strange scene: a pink-haired boy cowering behind Luffy, who was facing off against a towering, heavy make-up woman wielding a massive mace.

Oblivious to the danger, Luffy pointed at her and asked the pink-haired boy beside him, "Hey, who's this rude Aunty?"

The warehouse fell silent. Alvida's pirates, the pink-haired boy—everyone froze in horror.

"Did he just—?"

"Yes, he called her—"

A collective shudder ran through the crowd as Alvida's expression darkened like a brewing storm.

Ikki strolled in at that moment, shaking his head in exasperation. "Luffy, that's incredibly rude," he chided.

Luffy blinked, confused. "What? She's—"

Ikki gestured toward Alvida with exaggerated politeness. "Can't you tell? She's an old woman!"

Luffy tilted his head. "Oh." Then, with a deep bow, he apologized with utmost sincerity. "I'm sorry, old lady. I shouldn't have called you Aunty."

Alvida's composure shattered entirely. Her face turned crimson with rage, and she swung her massive mace over her head.

"KILL THEM!"

The pirates snapped out of their shock and turned their attention to Ikki, figuring he'd be the easier target. Meanwhile, Alvida aimed her mace directly at Luffy's head, fully intending to crush him.

As more than twenty pirates rushed toward Ikki, he took a calm, deep breath.

"Sky Dragon's Roar"

Before the pirates could reach him, Ikki unleashed a powerful burst of dragon's breath, sending all of them flying across the deck and into the sea.

On the other side of the ship, Luffy faced off against Alvida herself. With a grin, he stretched his arms back and shouted, "Gum-Gum Bazooka!" His fists rocketed forward, slamming into the rotund pirate captain and launching her off the ship and into the ocean.

At that moment, Ikki's system chimed in:

[Elite Pirate defeated. Justice Value +10.]

Ikki grinned. So, Alvida's worth a bit more than the grunts, huh? Still, her bounty of five million berries and her status as a captain didn't amount to much in the grand scheme of things. A captain in the Grand Line—even one with no bounty—would probably grant more points than Alvida. But it was still a good start.

With the Alvida Pirates defeated, the commotion began to settle. That was, until a Marine ship appeared on the horizon, rapidly approaching the passenger vessel.

Seeing the Marines arrive, Luffy immediately grabbed Koby and Ikki. "Let's run! The Marines are here!"

Ikki shook off Luffy's hand, looking annoyed. "Run? Why would we run? We're righteous private Marines!"

"Private Marines?" Luffy tilted his head, confused. He wanted to be the man who would become the Pirate King, yet his crewmate was claiming to be a Marine? What kind of ridiculous setup was this?

"We're pirates!" Luffy declared. "Of course, we have to run when we see Marines!"

"Listen to me! We're certified by the Marines! There's no need to run!" Ikki snapped, pulling out the letter of appointment Garp had given him.

The Marine ship closed in, and soon, a group of Marines boarded the passenger ship. Passengers who had been hiding came out from their hiding spots, collapsing in relief at the sight of the Marines.

Meanwhile, off to the side, an orange-haired girl loaded stolen treasure from the Alvida Pirates' ship onto her small boat. Quietly and efficiently, she sailed away, steering clear of the unfolding chaos.

...

Back on the passenger ship, a Marine captain approached Ikki, Luffy, and Koby. He scrutinized the trio. "Are you passengers as well?"

"No," Luffy answered cheerfully. "We're pirates! My name's Monkey D. Luffy, and I'm going to be the man who will find the ONE PIECE!"

The Marine captain's eyes widened in shock, and he immediately drew his sword.

Before things could escalate, Ikki stepped forward at lightning speed, holding up the letter of appointment. "Hold it! We're on the same side. I'm Private Marine Admiral Ikki, and this guy here"—he gestured to Luffy—"is Private Marine Fleet Admiral!"

The Marine captain froze, staring at Ikki like he'd grown a second head. "...Do you think I'm stupid?"

But then his eyes landed on the letter. The Marine Headquarters seal was genuine. Ikki didn't stop there—he also produced the dog-headed Den Den Mushi, Garp's personal communicator. Seeing this, the Marine captain's skepticism dissolved into shock.

"Private Marine…? Fleet Admiral…?" The captain muttered, his expression a mix of confusion and disbelief.

He thought it through: private Marines were technically under Marine Headquarters but operated independently, so their ranks could vary greatly. While their official titles sounded grand, they might hold less influence than they claimed. Even so, the sheer fact that they were linked to Garp meant they were above his small East Blue station.

His demeanor shifted immediately, becoming more respectful. "Private Marine Fleet Admiral and Admiral… understood, sir."

Just then, the captain hesitated and asked cautiously, "But why did he"—he pointed to Luffy—"say he wanted to find the ONE PIECE'?"

Ikki smirked, leaning in slightly. "Think carefully about his words. What did he actually say?"

The Marine captain frowned, replaying Luffy's statement in his head. After a moment of realization, his eyes went wide. "He said he wanted to become a man of ONE PIECE!"

Ikki nodded sagely. "Exactly. And who's this guy? He's the grandson of Vice Admiral Garp, the legendary Marine who once clashed with the Pirate King himself! Luffy's not just an ordinary guy. He's awakened something extraordinary."

The Marine captain froze, his hand hovering nervously over his sword. "Did I just hear a massive Marine secret?"

Sweat beaded on his brow as he thought, Am I going to get silenced for overhearing this?

(T/N: In many fanfiction, Luffy says he will become One Piece, by rewriting the original chinese words, it seems like he says he will be the 'man' of One Piece, wehre One Piece is the Pirate King and he is his boyfriend. So just think of it that Ikki is telling Luffy is gay.)