The sea had a smell.
Salt.
Wind.
Freedom.
And occasionally… blood.
Ryuma Machida knew that smell before he even opened his eyes.
⸻
A gentle breeze brushed against his face.
Warm sunlight filtered through wooden shutters, casting narrow golden bars across a small, unfamiliar room. The creak of old timber swayed with the rhythm of distant waves.
Ryuma slowly opened his eyes.
The ceiling was wooden.
Not modern.
Not familiar.
He stared at it silently.
Then he sighed.
"…Ah."
His voice sounded younger.
Much younger.
He lifted a hand into view.
Smooth skin. Long fingers. Not the slightly calloused hands of a man who had lived twenty-six years on Earth.
No.
These were the hands of a teenager.
Ryuma sat up slowly.
A mirror hung across the room. He stood and walked toward it with an easy, unhurried stride.
The boy staring back at him looked about sixteen.
Tall for his age. Broad-shouldered already, though still possessing the lean build of youth. His hair was long and dark, tied loosely behind his head with a thin cord. Several strands fell lazily across his forehead.
His eyes were calm.
Too calm for someone his age.
Deep crimson.
Not natural.
But strangely fitting.
His face was handsome in a quiet way — sharp jawline, high nose bridge, and an expression that seemed permanently relaxed, as though nothing in the world could truly disturb him.
Ryuma tilted his head.
"…Not bad."
He stretched his arms lazily.
His body moved smoothly.
Power flowed through him.
Not ordinary strength.
Something far deeper.
A pressure.
A heat.
A presence.
Ryuma exhaled slowly.
And the room temperature rose slightly.
A faint shimmer of heat distorted the air.
He closed his eyes.
Inside him was an ocean of power.
Ancient.
Violent.
Unfathomable.
The power of Genryusai Yamamoto.
Every memory.
Every technique.
Every battle.
Centuries of combat experience rested quietly within his mind like a sleeping volcano.
Swordsmanship.
Kido.
Flash Step.
Reishi manipulation.
And above all—
The oldest, most terrifying flame.
Ryujin Jakka.
Ryuma rubbed the back of his neck and laughed softly.
"Well… that's a bit unfair, isn't it?"
He hadn't trained.
Hadn't fought.
Hadn't earned any of it.
Yet he was already stronger than anyone in this world.
He could feel it instinctively.
The air itself obeyed him.
Even the spiritual particles drifting invisibly through the atmosphere responded to his will.
Ryuma lifted one foot.
And stepped forward.
Instead of touching the floor—
His foot landed on nothing.
A platform of condensed reishi formed beneath it like invisible glass.
He stood in midair for a moment.
Then stepped down again.
"Convenient."
His tone carried amusement.
There was no tension in him.
No arrogance either.
Just the relaxed acceptance of someone who understood the scale of his power.
Ryuma walked to the window and pushed it open.
Outside lay a small harbor town.
Wooden docks.
Fishing boats.
Colorful market stalls.
Seagulls drifting lazily above the water.
And on a distant building…
A blue symbol.
A seagull.
Ryuma smiled faintly.
"The Marines, huh?"
He leaned against the window frame.
His memories of this world were clear.
The world of pirates.
The era of the Great Pirate Age.
Gol D. Roger had been executed years ago.
And now the seas were chaos.
Pirates everywhere.
Some were adventurers.
Some were dreamers.
Most were criminals.
Ryuma watched a group of fishermen unloading their catch.
Children ran along the docks.
A woman scolded her husband loudly while he laughed.
Peaceful.
Simple.
The kind of life pirates loved to destroy.
Ryuma stretched again.
His bones cracked lightly.
"Guess I should work then."
His personality had never been particularly serious.
Even now.
With the power of the strongest Shinigami in existence.
He wasn't overwhelmed.
He wasn't excited either.
Just… mildly interested.
Like a man deciding what tea to drink in the morning.
Ryuma stepped away from the window and glanced down at his clothes.
Simple, but neat.
A dark navy blue haori-style coat hung loosely over a black shirt.
The coat reached just above his knees and had wide sleeves, giving it a slightly traditional feel reminiscent of old samurai robes.
A red sash wrapped around his waist.
At his left side hung a katana.
Plain sheath.
Black handle.
But the moment Ryuma touched it—
The air trembled slightly.
The sword of flames.
Ryujin Jakka.
He smiled faintly.
"Let's not burn the island down on day one."
Ryuma slid the sword back into place.
He walked outside.
The town was called Brine Village, a small settlement in the East Blue.
Peaceful.
Quiet.
Too quiet.
Ryuma could already feel it.
Several presences approaching from the sea.
Crude.
Violent.
Hungry.
Pirates.
He yawned slightly.
"Morning exercise, I guess."
⸻
The harbor bell rang.
Villagers looked toward the sea in panic.
A ship approached.
Black flag.
Grinning skull.
Cannons visible along the side.
Someone shouted.
"PIRATES!"
Panic spread instantly.
People ran.
Stalls overturned.
Children cried.
Ryuma stood calmly at the edge of the dock.
Hands in his sleeves.
Watching.
The pirate ship crashed against the pier.
A dozen rough men jumped onto the docks, laughing.
Their captain stepped forward.
Huge.
Scarred.
Holding a massive axe.
"Well well!"
He grinned.
"Looks like easy pickings today, boys!"
The pirates cheered.
Then the captain noticed something strange.
A boy standing alone.
Relaxed.
Watching them.
The captain laughed.
"Well kid, you've got guts—"
Ryuma sighed softly.
Then vanished.
Flash Step.
The pirates didn't even see him move.
Ryuma appeared behind the captain.
His sword was already drawn.
A single clean motion.
Shing.
The captain froze.
Then collapsed.
Perfectly cut.
The dock went silent.
The pirates stared in horror.
Ryuma yawned.
"You guys picked the wrong town."
His crimson eyes looked at them lazily.
Then heat began to radiate from his body.
Not fire yet.
Just warmth.
Like standing too close to a furnace.
Some pirates instinctively stepped back.
One trembled.
"W-What the hell are you…?"
Ryuma rested Ryujin Jakka on his shoulder.
His smile was calm.
Almost friendly.
"Just a future Marine."
The air around him shimmered.
"Fleet Admiral sounds like a nice retirement job."
Flames flickered faintly along the blade.
And the pirates realized something terrifying.
The boy in front of them wasn't a hero.
Wasn't a prodigy.
Wasn't even a monster.
He was something much worse.
Someone who had already reached the top of the world…
…and had simply decided to start walking.
⸻
Ryuma looked up at the sky.
"Alright."
He smiled lazily.
"Let's clean up some trash."
The blade ignited.
And the sea breeze carried the scent of fire.
⸻
End of Chapter 1
⸻
If you'd like, I can continue with:
• Chapter 2: The Man Who Walked on the Sea (Ryuma demonstrates reishi walking and defeats pirates effortlessly)
• Chapter 3: Marine Base Recruitment
• Chapter 4: The Boy Stronger Than Captains
• East Blue Pirate Hunts
• Meeting Smoker
• Marine Training Arc
• First use of Haki
• Gion and Doll introduction later with age progression
I can also make the story much longer (true light-novel style with 3000–5000 word chapters) and build major arcs all the way to Fleet Admiral.
Embers of Absolute Justice
Chapter 2 — The Man Who Walked on the Sea
The pirates did not understand what they were facing.
To them, Ryuma Machida looked like nothing more than a calm, slightly lazy boy standing on the dock with a sword resting casually on his shoulder.
A teenager.
Sixteen, at most.
Too young to even grow a proper beard.
Too relaxed to be dangerous.
One pirate finally broke the silence.
"You… you killed the captain!"
The man held a curved cutlass with trembling hands.
Behind him the other pirates slowly spread out, trying to surround Ryuma.
Fear was already creeping into their expressions.
But pirates rarely ran first.
Pride and stupidity tended to mix together.
Ryuma sighed.
The sound carried clearly in the quiet harbor.
"You guys really shouldn't shout so early in the morning."
He scratched the back of his head lazily.
"I just woke up."
One pirate roared.
"GET HIM!"
They rushed him.
Five at once.
Cutlasses raised.
Boots pounding against the wooden dock.
Ryuma didn't move.
The blade of his sword glowed faintly orange.
The air around him began to ripple.
Then—
Shunpo.
To the pirates, Ryuma simply disappeared.
A flash.
A distortion.
Then he was behind them.
Ryuma swung his blade once.
A single smooth arc.
Not fast.
Not exaggerated.
Just efficient.
The sound of steel slicing air whispered softly.
Five pirates froze.
Their weapons slipped from their hands.
A second later—
They collapsed.
Clean cuts.
Perfect control.
No wasted movement.
The remaining pirates staggered back in terror.
"T-That… that speed—!"
"He vanished!"
"Monster!!"
Ryuma sheathed his sword halfway and yawned again.
"Relax."
His tone was gentle.
"I'm only cutting pirates today."
The villagers who had hidden behind buildings slowly peeked out.
Their eyes widened.
The entire pirate crew had been defeated in less than ten seconds.
Ryuma stretched his shoulders.
He glanced toward the pirate ship.
More pirates were still aboard.
He could feel them.
Their presence was crude and violent.
But weak.
Extremely weak.
Compared to the spiritual pressure resting quietly inside him…
They were like candles before a volcano.
Ryuma stepped toward the edge of the dock.
The sea moved calmly beneath the morning sun.
Sparkling.
Peaceful.
A pirate on the ship aimed a musket at him.
"DIE!"
The gun fired.
The bullet shot toward Ryuma.
He tilted his head slightly.
The bullet passed beside his ear.
"Guns are rude."
Then Ryuma stepped forward.
But instead of falling into the ocean—
His foot landed on air.
Or rather…
On a platform of condensed reishi.
Invisible spiritual particles gathered beneath his sandal like solid glass.
The villagers gasped.
"He's… standing on the water?!"
Ryuma walked forward calmly.
Step.
Step.
Step.
Each step formed another invisible platform across the sea.
The pirates aboard the ship stared in horror.
"WHAT THE HELL IS THAT?!"
"Is he a Devil Fruit user?!"
"Shoot him!"
More muskets fired.
Bullets flew toward Ryuma.
He didn't even bother dodging.
Ryuma raised two fingers casually.
"Kido number thirty-one."
A small circle of light formed.
"Shakkaho."
A red sphere of energy shot forward.
It struck the pirate ship's mast.
BOOM.
The explosion shattered wood and sent pirates flying across the deck.
Smoke rose into the sky.
Ryuma continued walking calmly across the sea.
His coat fluttered lightly in the ocean breeze.
The pirates scrambled in panic.
"RETREAT!"
"CUT THE ROPE!"
"GET THE CANNONS READY!"
One pirate managed to fire a cannon.
The cannonball roared toward Ryuma.
He glanced at it lazily.
"…Too slow."
Flash Step.
Ryuma appeared on the pirate ship's deck.
The cannonball splashed harmlessly into the ocean behind him.
The pirates froze.
Up close…
The boy felt different.
The heat radiating from him was suffocating.
Like standing near a furnace.
Ryuma rested Ryujin Jakka on his shoulder again.
"You know," he said casually, "you guys picked a really unlucky island."
One pirate lunged at him with a spear.
Ryuma moved his wrist slightly.
The spear snapped in half.
The pirate stared at the broken weapon in disbelief.
Then Ryuma tapped him lightly on the forehead.
The man flew across the deck and crashed into the railing.
Another pirate tried to attack from behind.
Ryuma didn't even turn around.
His spiritual pressure alone knocked the man unconscious.
Several pirates dropped their weapons.
"P-Please!"
"We surrender!"
Ryuma scratched his cheek.
"Hm."
He looked genuinely thoughtful.
Then he shook his head.
"Too late."
The blade of Ryujin Jakka slid free from its sheath.
For a moment—
The entire ocean breeze stopped.
Heat gathered around the sword.
Not wild.
Not explosive.
Just controlled.
Ancient.
The pirates felt it instantly.
Instinct screamed at them.
Run.
But their legs refused to move.
Ryuma lifted the blade slightly.
"Don't worry," he said casually.
"It'll be quick."
Flames ignited along the sword.
Not large.
Just a thin orange line.
But the temperature on the ship spiked instantly.
Wood began to crack.
Sweat poured down the pirates' faces.
Ryuma stepped forward.
One swing.
Fire flashed across the deck.
The pirate ship split apart.
Cleanly.
Like butter under a hot knife.
Flames swallowed the wreckage.
The surviving pirates fell into the ocean screaming.
Ryuma sighed.
He stood on a floating piece of burning wood.
The ocean hissed where flames touched the water.
He looked back toward the village.
Villagers stared in stunned silence.
Some were kneeling.
Others simply watched with wide eyes.
Ryuma scratched the back of his head awkwardly.
"…Oops."
He might have overdone it.
Just a little.
He jumped lightly from the wreckage.
Step.
Step.
Invisible reishi platforms formed beneath his feet again.
Ryuma walked back across the ocean toward the dock like someone taking a morning stroll.
When he reached the shore, the villagers parted instinctively.
An old fisherman approached nervously.
"M-Mister… are you a Marine?"
Ryuma looked down at his clothes.
He shrugged.
"Not yet."
He smiled lazily.
"But I'm thinking about applying."
The fisherman blinked.
"You… want to join the Marines?"
Ryuma nodded.
"Seems like a decent job."
He glanced at the burning wreckage floating in the sea.
"Plus I'm pretty good at cleaning up pirates."
The villagers stared at him in silence.
Ryuma yawned again.
"Well."
He stretched his arms.
"Where's the nearest Marine base?"
The old fisherman slowly pointed east.
"About a day's sail… Shells Town."
Ryuma smiled.
"Perfect."
He began walking toward the road leading out of town.
Hands tucked lazily into his sleeves.
Completely relaxed.
Behind him…
The pirates burned.
Ahead of him…
The path to becoming a Marine had just begun.
And somewhere far away on the Grand Line—
The future Fleet Admiral had just taken his first step.