Sea Calendar Year 1489, the North Blue.
Captain Bourne of the Blood Blade Pirates, a notorious pirate with a fifteen-million-Berry bounty, was scanning his surroundings warily.
"Have you ever been kicked at the speed of light?"
Before the crisp, melodic voice could fully register, a burst of blinding golden light flashed. Bourne’s pupils shrank to pinpricks. Before he could raise a single defensive stance, a heavy, devastating blow struck his waist at light speed.
His massive body shot backward like a broken kite, crashing violently into the depths of the ship's cabin. He smashed through layers of wooden planks and support beams, kicking up a violent storm of splintered wood and dust.
The remaining pirates on deck stared in sheer horror at the young girl who had materialized out of thin air in the center of the main deck. Not a single soul dared to take a step forward.
"The... the Fiend!"
With that first terrified scream, utter chaos broke out. The pirates scattered in panic, leaping overboard one after another to escape.
Unbothered by the fleeing crew, the girl strolled forward. She grabbed the unconscious Bourne with one hand and casually lifted him up, sighing in soft disappointment.
"So weak? As expected, in a backwater like the Four Seas, it's hard to find anyone who can even use Haki."
Without lingering any longer, she transformed into a beam of radiant light, carrying Bourne along as she streaked across the sky toward the Marine North Blue Branch.
At the recruitment grounds of the Marine North Blue Branch, a scorching sea breeze carrying the salty, fishy smell of the ocean swept across the open-air plaza. The surrounding crowd bustled with noisy activity.
A striking figure carrying a heavy sack drew everyone's attention.
Behind a simple wooden desk, a young Marine warrant officer kept his head down, pen in hand, monotonously repeating the question he had asked a hundred times that day:
"Name?"
A clear, casually lazy female voice answered slowly, "Borsalino."
The warrant officer's pen paused mid-stroke. "Specialty?"
"Logia Glint-Glint Fruit user."
The words were delivered lightly, yet they struck the small desk like a sudden bolt of thunder.
"L... Logia?!"
The warrant officer bolted up from his wooden chair, his eyes wide with shock as his voice spiked, instantly cutting through the noise of the plaza.
Every eye turned toward the girl in front of the desk, and the chaotic recruitment ground fell dead silent.
Under the collective gaze of the crowd, the girl stood tall and composed. Her simple white martial arts outfit was crisp and neat, its tailored fit accentuating her well-proportioned, athletic figure. Long, jet-black hair spilled casually over her shoulders, framing a face with skin as pale and translucent as jade.
The young warrant officer stared at her, his throat bobbing as he swallowed hard.
A Logia user!
An existence standing at the absolute apex of the Devil Fruit hierarchy, the universally acknowledged ceiling of power across the seas!
His heart hammered in his chest. He had hit the motherlode! An enormous merit was practically throwing itself into his lap, and a second-class commendation was practically guaranteed!
Instantly dropping his bureaucratic detachment, he leaned forward, utterly deferential. "P-please wait right here! Don't move, don't leave! I'll report to the Base Commander immediately!"
Terrified that this Logia powerhouse might vanish into thin air, he gestured frantically for her to stay put before spinning around and sprinting off. His chaotic, hurried steps looked as if he wished he could sprout wings and fly straight to the commander's office.
Watching his flustered, retreating figure, Borsalino let out a quiet sigh, a trace of helplessness flickering in her eyes.
She hadn't even finished filling out her details yet, and she was still holding a collapsed pirate captain in her hand.
It had been a year and a half since she transmigrated into this world of One Piece.
In her previous life, she had been an ordinary science major on Earth and a die-hard One Piece fan. She hadn't been struck by a truck, nor had she stepped out of a convenience store; she had simply fallen fast asleep, only to wake up in a completely different world.
The moment she opened her eyes, the memories of her new body flooded her mind like a rising tide, merging seamlessly with her soul.
She quickly realized that her name in this world was Borsalino, and that she possessed the Logia Glint-Glint Fruit.
When the memory transfer finished, she was left utterly stunned.
Borsalino? The Glint-Glint Fruit?
Wasn't this Kizaru, one of the future three Marine Admirals, the ultimate slacker whose favorite catchphrase was "How scary~"?
But the real shock came when she caught sight of her appearance: it was light-years away from the slick, slightly greasy middle-aged uncle face of the original series. Instead, she possessed a face breathtaking enough to rival the future Pirate Empress, Boa Hancock.
Was this some kind of unwritten transmigration bonus?
After the initial shock wore off, it took her a mere two and a half days to accept her new reality completely.
So what if she had been gender-bent? Compared to becoming a greasy uncle, this body was a jackpot! Besides, possessing the raw talent of a future Admiral alongside the broken power of the Glint-Glint Fruit was a dream come true for a die-hard fan.
Standing at 2.5 meters tall, she would have been considered a mini-giant back on Earth. But in a world devoid of common sense, where powerhouses grew to absurd proportions, her height was barely above average. Remembering that the future Summit War featured a hundred-meter-tall giant like Little Oars Jr., she let go of any lingering self-consciousness.
The current year was Sea Calendar Year 1489.
There were still nine full years before Gol D. Roger’s public execution would kick off the Great Pirate Era, and decades before Monkey D. Luffy would set sail.
Her current body was twenty-five years old, sitting right at the absolute golden peak of physical condition.
Over the past year and a half, she had spent the first six months completely dedicated to mastering the Glint-Glint Fruit. As an SSS-rank ability that boasted one of the highest skill ceilings in the world, controlling light speed, refraction, trajectory, and energy output required extreme precision. Drawing on her background as a rigorous science student, she refined her control and developed multiple tactical applications for the fruit.
For the past year, she had roamed the North Blue, testing her abilities in real combat.
In the weak waters of the Four Seas where Haki was practically unheard of, a Logia user was a walking disaster. Over the course of twelve months, half of the North Blue pirates with bounties over ten million Berries had fallen to her.
Her blistering light-speed strikes and terrifying destructive output quickly earned her a fearsome reputation among the local pirates. The moniker "The Fiend" echoed across the North Blue.
A popular saying even circulated among the crews: "If you run into the 'Fiend,' that 'Golden Legend,' you've really hit the jackpot in bad luck."
Yet despite being functionally invincible in the North Blue, she felt no sense of accomplishment.
She understood the underlying rules of this world: the endgame belonged to Haki. A Logia user without refined Haki would be riddled with weaknesses in front of top-tier powerhouses.
She had tried self-training her Haki, but the results were underwhelming. She had barely managed to awaken Observation Haki, sensing nearby presences and vague threats, while Armament Haki remained completely elusive, to say nothing of Conqueror's Haki.
Without the luxury of taking Teacher Kaido's high-intensity crash course, she had to find another path.
She remembered the original timeline: Borsalino and Sakazuki would enter Admiral Zephyr's Marine Elite Training Camp in Sea Calendar Year 1490.
She chose to enlist a year early. Staying in the North Blue would only waste her prime training years, since the Four Seas lacked the resources for advanced Haki mastery. Zephyr's training camp would open next year, and with her status as a Logia user, securing a spot would be effortless.
Rapid, heavy footsteps snapped Borsalino out of her thoughts.
A group of Marines was approaching at a brisk pace. Leading them was a stern-faced man wearing a Marine "Justice" coat with Lieutenant Commander epaulets on his shoulders, Lieutenant Commander Wayne, the Base Commander of the North Blue Branch.
Out of breath from running, Wayne locked his eyes onto the tall figure in the plaza. He scanned her from head to toe, his eyes wide with disbelief and shock.
"You... you're the legendary 'Fiend'?"
How could he not be thrilled?
A mysterious Logia Glint-Glint Fruit powerhouse had spent the past year terrorizing the pirate underworld of the North Blue, leaving every crew in constant dread. Marine Headquarters had even issued explicit orders to track her down at all costs!
And now, such a top-tier combatant had walked right into his recruitment center to enlist on her own accord!
Wayne wasted no time. Handling everything personally, he expedited Borsalino's enlistment paperwork and handed over the bounty reward for Captain Bourne on the spot.
"Miss Borsalino, please rest and recuperate at our branch for a few days!" Wayne said earnestly. "A talent like yours is far beyond what our North Blue Branch can hold. I will report this to Headquarters immediately, and your future in the Marines is unlimited!"
Borsalino gave a subtle nod, unfazed. A future Admiral position was merely her baseline, after all.
By the way, she mused, a lot of fans back on Earth used to theorize that Kizaru was an undercover Revolutionary, but there is nothing like that in my memories. Being a double agent sounds like way too much trouble anyway. Why would I follow that old path now that I'm here?
What she didn't know was that on that very night, far across the sea...
At the port of Marine Headquarters, a sleek warship silently unmoored under the dark sky and set sail into the pitch-black sea, cutting through the waves at full speed toward the North Blue.
Standing at the bow against the cold night wind was a tall figure.
The man had neatly slicked-back hair, a broad forehead, and a resolute face with deep, steady eyes that conveyed a maturity far beyond his years. The shoulder straps on his uniform bore the rank of Lieutenant Commander, faintly reflecting the moonlight.
Headquarters Lieutenant Commander Monkey D. Dragon.
Tonight, he had been dispatched on an urgent mission to the North Blue.