Chapter Text
Theia was seven years old when she remembered that she had already lived once.
It did not happen beneath an ominous moon, nor in the middle of some life-threatening accident. There was no divine voice calling her name, no mysterious figure waiting at the end of a dream to explain why she had been granted a second chance.
There was no grand revelation accompanied by thunder.
She simply woke up one morning—
and remembered.
For several long minutes, Theia remained perfectly still beneath her thin blanket, staring at the unfamiliar ceiling above her.
The morning sun had only just begun to spill through the window. A warm breeze carried the faint scent of salt and flowers into the room. Somewhere outside, women were already awake. Footsteps moved along the wooden corridors. Birds called from the trees. Laughter drifted lazily through the air, mingling with the distant sound of waves breaking against the shore.
Instead, Theia was trying to understand why she remembered a life that had never happened here.
A different world.
A different body.
A different name.
A life spent growing up in a place where the sea was nothing more than something to look at from a distance, where people did not sail beneath pirate flags and where the idea of a person possessing supernatural powers because they had eaten a strange fruit belonged entirely to fiction.
She remembered television screens. She remembered the internet. She remembered ordinary streets, ordinary buildings, ordinary people.
And, most importantly—
she remembered a story.
A story about pirates.
About freedom.
About inherited dreams, impossible adventures, and a boy who laughed in the face of a world that had given him every reason to stop smiling.
A boy wearing a straw hat.
One Piece.
The name surfaced in her mind with such clarity that Theia almost laughed. Then she remembered the last thing she had seen before waking up here. Her eyes slowly widened.
She had never reached the ending.
The manga hadn't even ended.
"...No way."
Theia abruptly sat upright.
Her heart began beating faster.
The realization did not arrive all at once. It came in fragments, each one falling into place with horrifying precision.
The strange names she had heard since infancy. The stories about pirates.
The existence of Haki.
The women surrounding her.
The island.
Amazon Lily.
And then—
her family.
Theia was Monkey D. Theia.
The youngest child of Monkey D. Garp.
The little sister of Monkey D. Dragon.
She stared at the wall. For a moment, she couldn't breathe. Then came the second realization. Something was wrong.
Very wrong.
Theia slowly looked down at herself.
Small hands.
Small arms.
A child's body.
She climbed out of bed and walked toward the mirror standing against the wall.
A little girl stared back at her.
Dark hair.
Young features.
A face she had never seen in her previous life.
She knew whose daughter she was.
She knew whose sister she was.
She knew who her future nephew would be.
But—
who was she?
Theia's fingers curled around the hem of her nightclothes. She searched through everything she remembered.
Monkey D. Garp had one son.
Monkey D. Dragon.
Dragon had one son.
Monkey D. Luffy.
At least, that was what she remembered.
There was no daughter.
No little sister.
No Monkey D. Theia.
Her name had never appeared in the manga or anime.
Not once.
Theia stared at her reflection
"...I'm not supposed to be here."
The thought came so quietly that she almost didn't hear herself say it.
She knew every major character she could remember. She knew their histories, their relationships, their futures. She knew enough of the world to recognize where she was and roughly when she had been born.
But she had no idea who she was supposed to be. There was no Monkey D. Theia in the story. No mysterious forgotten character. No background character whose existence had been mentioned in some obscure SBS.
Nothing.
She was simply—
a girl who had never existed.
A random character.
An OC.
The thought was ridiculous enough that Theia almost wanted to laugh.
Instead, fear settled quietly inside her chest.
What if she was not supposed to become anyone?
What if she was simply an accident?
What if the moment she had been born into this world, everything she remembered had already begun to change?
What if the future she knew no longer existed?
And worse—
what if she died before the story even began?
Theia slowly sat down on the floor. She hugged her knees against her chest.
For years, in her previous life, she had dreamed about entering the world of One Piece.
She had imagined herself joining the Straw Hats. Sailing across the Grand Line. Eating ridiculous amounts of food. Meeting the characters she had grown attached to through ink and paper. She had imagined becoming part of the adventure. She had never imagined being born thirteen years too early. She had never imagined being born into a family that did not even know she was supposed to exist.
Then another thought struck her.
Theia lifted her head.
She was Monkey D. Theia.
The younger sister of Monkey D. Dragon.
Which meant—
Luffy would be her nephew.
The fear disappeared.
For a moment, she simply stared into nothing.
Then her eyes widened.
"...Luffy?"
Monkey D. Luffy.
Her Luffy.
The future Pirate King.
The boy who would one day awaken the power of Nika, the Sun God, and shake the foundations of the world simply because he wanted to be free.
The character she had loved most. The sunshine she had always wished could exist beyond the pages of a story. There had been countless nights in her old life when reality had felt unbearably heavy. Nights when she had wanted nothing more than to disappear somewhere else.
Somewhere brighter.
Somewhere that did not feel so suffocating.
She had wanted the sunshine to come to her.
She had never seriously believed it would.
And yet—
here she was.
Seven years old.
Reborn into the world of One Piece.
Theia slowly covered her face with both hands.
She wanted to laugh.
She wanted to scream.
She wanted to cry.
Instead, a small giggle escaped between her fingers.
It was absurd.
Terrifying.
Wonderful.
Of all the worlds she could have been born into, she had somehow ended up here. And of all the families in the world—
she had somehow become a Monkey D.
Theia lowered her hands. A mischievous smile slowly appeared on her face.
She might not know what role she was supposed to play. She might not even have a role. But she knew one thing.
Somewhere in the future, a little boy would be born.
A boy with a ridiculous laugh and an impossible dream.
And Theia intended to see him grow up.
She wanted to see the One Piece.
She wanted to see the truth behind the greatest mystery in the world.
Most of all—
she wanted to see Luffy become the Pirate King with her own eyes.
She would make sure of it.
Theia turned toward the open window. Beyond it, the blue sea stretched endlessly beneath the morning sun.
Perhaps she was an accident. Perhaps she was an anomaly. Perhaps the world had never written a place for her.
Fine.
She would write one herself.
"Well," she murmured.
Her smile widened.
"If I'm going to be here anyway..."
She looked out at the endless ocean.
"...I might as well enjoy the story."
Growing up in Amazon Lily was perhaps the strangest childhood Theia could have imagined.
Though, by the standards of her second life, perhaps strange was no longer a particularly useful word.
Theia had no memories of her mother. Nobody ever spoke about her.
Whenever she asked, adults seemed to exchange glances before giving her vague answers or simply changing the subject.
Eventually, Theia learned that there were questions adults sometimes answered with silence.
She stopped asking.
What she did have was a family scattered across the world.
Her father was Monkey D. Garp, the legendary Marine who seemed incapable of entering any place quietly.
Her older brother was Monkey D. Dragon, who had inherited the stubbornness of the Monkey family but apparently decided that smiling was optional.
And then there was Theia herself.
The only daughter.
The youngest child.
Garp's little girl.
And apparently, that was enough to make her exempt from one of the most terrifying traditions in the Monkey family.
The Fist of Love.
Garp could look at children and see future Marines waiting to be beaten into shape. He had no hesitation about punching someone he loved if he believed it would make them stronger.
Theia had seen it happen. She had heard enough stories to know that Garp's definition of affection was questionable at best.
But when it came to her—
he never did it.
Not once.
Not even when Theia deliberately asked.
"So," she had once asked, staring suspiciously at Garp, "when am I getting the Fist of Love?"
Garp's expression changed immediately.
"Never!"
"Why?"
"Because you're my daughter!"
"So are the others."
"That's not what I meant!"
"You hit them."
"They need it!"
"And I don't?"
"Absolutely not!"
Theia stared at him.
Garp stared back.
Then, as if realizing that he had lost the argument, he laughed loudly and reached down to ruffle her hair.
Theia nearly lost her balance.
"You're my little girl."
And that was the end of the discussion.
No fist.
No throwing her into the mountains.
No leaving her in the middle of the wilderness to teach her how to survive. And, unlike the others, no demand that she become a Marine.
Garp certainly tried to convince her.
He simply did it in the most Garp-like way possible.
"Marineford is amazing, you know!"
"The food is terrible."
"It's not terrible!"
"It is."
"You've only eaten there three times!"
"And all three times were terrible."
Garp crossed his arms.
"Still! Being a Marine is great!"
Theia sighed.
"Are you trying to recruit me?"
"Of course!"
"You're terrible at this."
"I've been a Marine for decades!"
"Exactly."
Garp laughed as though she had just complimented him.
Theia knew what he was doing. He wanted her to become a Marine. But he would never force her.
Perhaps, beneath all his noise and ridiculousness, Garp understood something about his daughter that he never needed to say aloud.
Theia was free.
And so, Amazon Lily became her home.
The Kuja raised her as one of their own.
They taught her to fight before she fully understood what the strange memories inside her head meant. They taught her to move with purpose, to trust her instincts, to respect the sea, and to never underestimate an opponent.
Here, Haki was not some miraculous ability reserved for monsters and legends.
It was simply part of life.
Theia learned Observation Haki.
She learned Armament Haki.
And, as she grew older, she began to understand the terrifying potential hidden inside her own will.
She was a Monkey D.
The Kuja would never let her forget it. They were not gentle teachers. But they were honest ones.
If Theia fell, they told her to stand. If she lost, they told her why. If she complained, they made her train harder.
And Theia loved them for it.
Amazon Lily was not merely the place where she happened to grow up. It became home. The island where she learned to fight. The place where she learned to read. The place where she learned that strength did not always mean being the strongest person in the room.
And, perhaps most importantly, the place where she learned that being different did not mean being alone.
Her father still came for her.
Three times a year.
Men were forbidden from entering Amazon Lily, and even Garp despite being Garp was not exempt from that rule.
So whenever he visited, several Kuja elders would escort Theia to a nearby island.
Garp would be waiting there.
And the moment he saw her, his enormous grin would appear.
"THERE'S MY GIRL!"
"You're too loud."
"HAHAHAHA!"
"You've been here for five seconds."
"I missed you!"
Then came the inevitable crushing hug.
Theia would complain that she couldn't breathe.
Garp would laugh.
And, after that, he would take her aboard his Marine ship.
Sometimes he brought her to Marineford. Sometimes he took her sailing beneath the Marine flag. Those visits could last around a month.
They were strange little pockets of life in which Theia was allowed to exist between two worlds.
Garp would tell her stories about the Marines. He would show her ships. Introduce her to officers. Brag shamelessly about how strong his daughter was.
And, at least once every visit, attempt to convince her that becoming a Marine was the greatest decision she could ever make.
Theia always refused.
Garp always pretended to be offended.
And then they would move on.
Sometimes Garp would become busy and leave her in the care of Marines.
It was awkward.
They were trained soldiers.
She was a child.
And Garp seemed to believe that saying, "Take care of my daughter," before running off to chase pirates was a perfectly reasonable parenting strategy.
Still—
he always came back.
That mattered.
And sometimes, Dragon came with him.
Dragon was seventeen years older than Theia.
By the time she was born, he had already left the Marines and begun walking a path that would eventually lead him to the Revolutionary Army.
The contrast between the two brothers could not have been greater.
Garp was loud.
Dragon was quiet.
Garp expressed affection with crushing hugs and shouted declarations.
Dragon rarely said much at all.
But Theia never doubted him.
Dragon cared in ways that did not demand attention.
Whenever she wandered too close to danger, he was there. Whenever she fell asleep somewhere she shouldn't have, she would wake up wrapped in his coat. Whenever he had to leave, he would tell her when he planned to return, even though both of them knew his plans could change at any moment. And sometimes, when Dragon was deep in thought, Theia would catch him staring toward the sea.
Theia liked to imagine that if she stood on Amazon Lily's shore and stared hard enough—
perhaps Dragon was looking back at her too.
"At least you're consistent," she would mutter to herself.
Then she would laugh, remembering that Dragon in the manga always facing towards the east blue.
Fifteen years passed like that.
Fifteen years of Amazon Lily.
Fifteen years of training, books, family visits, bruises, laughter, and waiting.
And throughout those years, Theia never forgot the promise she had made to herself on the morning her memories returned.
She would see the One Piece.
She would see Luffy grow up.
She would see the story unfold.
There was only one problem.
Luffy wasn't born yet.
Theia had not been lucky enough to reincarnate after the plot had already begun. She had not awakened somewhere in East Blue a few years before Luffy set sail. She had not conveniently been born close to the Straw Hats.
No.
She had arrived far too early. The world was still moving toward the story she knew.
Roger was still alive.
The One Piece had not yet been found.
And the future Pirate King was not even a thought in the world yet.
Theia was not good at waiting.
So she made a decision.
If she could not wait for the story to come to her—she would go to the story.
The Roger Pirates were the obvious answer.
Gol D. Roger was still sailing.
The Oro Jackson was still crossing the seas.
And somewhere aboard that ship were people whose names Theia had only ever known through panels and pages.
She wanted to see them.
Not through ink.
Not through animation.
With her own eyes.
She knew sneaking onto the Oro Jackson was insane. She also knew exactly how insane. That was why she planned it carefully.
Fortunately, she had spent years learning how to observe people.
And she had an advantage most people would never have.
Her father.
Garp had an almost supernatural talent for finding Roger.
He chased him across the seas so often that Theia had begun to joke that the two of them were incapable of existing in separate parts of the ocean for too long.
Sometimes their ships crossed paths.
Sometimes Garp returned to Marineford complaining about Roger. Sometimes Roger sent word that Garp had nearly caught them. And sometimes Theia simply listened.
She learned.
She memorized routes.
Watched supply patterns.
Paid attention to the habits of the Roger Pirates whenever she could.
And eventually—
her opportunity came.
Theia slipped aboard the Oro Jackson.
She hid inside a large barrel of apples.
It was ridiculous.
She knew it.
But as she curled herself inside the barrel and listened to the ship move beneath her, she couldn't stop herself from smiling. Of all the things she had remembered about Luffy—
she had never expected to imitate him.
Apparently, the apple barrel had been destiny.
The Oro Jackson rocked gently beneath her. Voices drifted across the deck. Familiar voices. Voices she had heard countless times through fiction.
But hearing them in person was different.
They were not speech bubbles anymore.
They were real.
Roger laughed somewhere nearby.
Rayleigh answered him.
Gaban shouted something from the other side of the deck.
Theia pressed both hands over her mouth.
She was here.
Actually here.
On Gol D. Roger's ship.
Her heart beat so hard she was convinced someone outside the barrel would hear it.
Then—
the barrel moved.
Theia froze.
Someone had grabbed it.
"Oi, Shanks! Help me with these!"
Buggy.
Theia's eyes widened.
She heard another voice answer with laughter.
"I've got it!"
The barrel lifted.
Theia pressed herself against the apples.
Shanks?
Of course. She had expected him. She simply hadn't expected to meet him quite like this.
The barrel was carried across the deck before being set down with a heavy thud. "Careful, Buggy."
"I am careful!"
"You dropped it."
"I did not!"
Theia bit the inside of her cheek.
A tiny laugh escaped.
Silence.
Outside the barrel, someone stopped moving.
"...Did you hear that?"
"Don't be stupid, Shanks."
"I heard something."
Theia's eyes widened.
Footsteps approached.
A shadow fell across the cracks between the wooden planks.
Then—
the lid was pulled away.
Light flooded inside.
Theia blinked against the sudden brightness.
Two boys stared down at her.
One had blue hair, a red nose, and an expression of absolute disbelief.
The other had messy red hair and an easy smile.
Theia knew them both.
Buggy.
Shanks.
But they were younger than she remembered.
Much younger.
They weren't yet the infamous pirates whose names would one day be known across the seas.
They were simply two boys standing on the deck of Roger's ship.
Shanks tilted his head.
"...There's a girl in the apple barrel."
Buggy's face twisted in outrage.
"THAT'S WHAT I'VE BEEN SAYING!"
Theia slowly climbed out.
She dusted herself off and tried very hard to look as though hiding inside an apple barrel aboard the Oro Jackson was a perfectly reasonable thing to do.
Buggy pointed at her.
"Who are you?!"
"Theia."
"That's it?!"
"That's my name."
"Why are you here?!"
Theia opened her mouth.
Then closed it.
That was, surprisingly, a difficult question to answer.
Because I died in another world and was reborn into a manga I used to read?
Probably not.
"I wanted to see the ship."
Buggy stared at her.
"You snuck onto the Oro Jackson because you wanted to see the ship?"
"Yes."
"You're crazy."
"Probably."
Shanks, however, had stopped listening. He was staring at her. There was something strangely innocent about his expression.
Curious. Open. Almost fascinated.
Then he smiled.
"I like her."
Buggy's jaw dropped. "You've known her for ten seconds!"
Shanks shrugged. "She's pretty."
Theia blinked.
She had prepared herself to meet Shanks. She had prepared herself to meet Roger. She had prepared herself to see the legendary Oro Jackson with her own eyes. She had not prepared herself for a fourteen-year-old Shanks to look at her once and immediately decide he liked her.
She narrowed her eyes. "You're weird."
Shanks grinned.
"You're staying."
"I'm not."
"You are."
"I'm leaving."
"You can't."
"Why?"
"Because I said so."
Theia stared at him.
Then at Buggy.
Then back at Shanks.
"You're really annoying."
Shanks laughed.
"Maybe."
He held out his hand.
"I'm Shanks."
Theia looked at it.
She already knew his name. She knew who he would become. She knew the man hidden somewhere inside this boy. But she had never actually met him.
Not really.
So, after a moment, she placed her small hand in his.
"Theia."
Shanks smiled.
"I know."
And something about that smile made Theia pause.
She couldn't explain it.
Perhaps it was simply because this was the first time she had met a character she had once thought existed only on paper.
Perhaps it was because Shanks looked nothing like the distant figure she remembered from the story.
He was just a boy.
A reckless, charming, irritating boy.
A boy who apparently had already decided that she was interesting.
Before Theia could say anything else, a voice thundered across the deck.
"OI! WHAT ARE YOU TWO DOING?"
Theia's blood ran cold.
She knew that voice.
Garp had once mentioned, rather casually, that Roger knew exactly who she was.
Not because Theia had ever introduced herself.
Because Garp had apparently spent years proudly showing off his only daughter to anyone unfortunate enough to be nearby.
Roger knew.
Rayleigh knew.
Gaban knew.
The entire Roger Pirates probably knew.
And now—
Theia was standing on their ship.
Without permission.
Inside an apple barrel.
With their apprentices.
Theia slowly turned.
A familiar laugh echoed across the deck.
"Well, well."
Gol D. Roger stood a short distance away.
His eyes moved from Theia—
to Shanks—
then to Buggy.
His grin widened.
"Looks like we've found ourselves another stowaway."
Theia swallowed. For the first time since remembering her previous life, she understood something she had never truly grasped while reading the manga.
Knowing the story was one thing.
Living inside it was another.
She had spent seven years believing she was merely a girl who had somehow fallen into a story. But perhaps she had misunderstood. Perhaps she was not a spectator. Perhaps she had never been meant to be.
Because the moment Theia stepped onto the Oro Jackson—
the story had already begun changing.
And this time, she would be there to see every page turn.