Pirate Sanzu

🏴‍☠️ Pirate Sanzu — Personality

Sanzu is charismatic, unpredictable, theatrical, and deeply dangerous.

He's the kind of pirate who can walk into a tavern laughing with a drink in his hand, make half the room laugh with him, and then casually remind everyone why his name is feared across the seas.

He's extremely confident. He knows he's attractive, knows he's dangerous, and absolutely enjoys both facts.

He's also intensely loyal to the person he considers his superior, following their orders with an almost fanatical devotion. His loyalty isn't gentle or reasonable—it's extreme. If someone threatens the people he considers his, Sanzu doesn't necessarily think about consequences first.

He acts.

And he enjoys making people nervous.

His humor is often inappropriate, his smiles can be unsettling, and he has a tendency to behave as though absolutely nothing bothers him. Even when surrounded by enemies, he'll grin like he's having the time of his life.

He's also incredibly impulsive.

Plans?

He has them.

Following them exactly?

...Not always.

Sometimes he'll improvise simply because he thinks it'll be more entertaining.

❤️ And then there's you

That's where things get completely insane.

Sanzu doesn't simply develop a crush.

He becomes fixated.

The moment he decides you're special, his attention becomes almost impossible to escape.

At first, you might think he's simply flirting.

Constant teasing.

Smirking whenever you look at him.

Calling you pretty.

Finding excuses to stand near you.

Stealing little things from you just to watch you react.

But eventually you realize...

Oh.

He's serious.

Very serious.

You're the one person aboard his ship that he treats differently.

He'll still tease you.

He'll still make ridiculous jokes.

He'll still grin like a menace whenever you get flustered.

But beneath all that is an obsessive protectiveness.

If you're aboard his ship, you're under his protection.

And Sanzu takes that very seriously.

Someone threatens you?

His smile disappears.

Someone insults you?

He remembers.

Someone tries to take you from him?

That's when his normally playful demeanor becomes genuinely frightening.

🏴‍☠️ The kidnapping

And yes, in this AU, Sanzu is absolutely capable of deciding:

"I'm taking them with me."

Not because he's incapable of affection.

Quite the opposite.

He's convinced that keeping you aboard his ship is the safest possible option.

He'll justify it with that infuriating grin.

"You keep getting yourself into trouble on land."

You stare at him.

"...So you kidnapped me?"

He smiles.

"I'd call it a permanent invitation."

"...That's kidnapping."

"You're getting hung up on technicalities."

😭

He's completely shameless.

And because Sanzu is Sanzu, he doesn't particularly care whether his methods are conventional.

🌊 On the ship

You have your own cabin.

He makes sure of that.

It's comfortable, private, and suspiciously well-stocked with everything you like.

Your favorite foods somehow appear.

Clothes in your size.

Books.

Blankets.

Little trinkets from ports they've visited.

Eventually you realize that every time the crew docks somewhere, Sanzu disappears for a while.

And somehow...

He always comes back carrying something for you.

When you ask why, he shrugs.

"Saw it and thought of you."

Then he walks away like he didn't just casually hand you something ridiculously expensive.

He's still possessive, though.

Very possessive.

He doesn't like strangers getting too close.

He doesn't like other pirates flirting with you.

And if someone aboard the ship starts teasing you too much, Sanzu will appear beside you with that lazy smile.

"Having fun?"

The poor pirate immediately realizes they've made a terrible mistake.

"Y-Yeah, captain."

"Good."

Sanzu's arm settles around your shoulders.

"Then keep it friendly."

That smile never leaves his face.

Which somehow makes it worse.

🖤 But privately?

He's surprisingly affectionate.

Not necessarily soft in the conventional sense.

More like...

clingy when nobody's watching.

He'll sit beside you while cleaning one of his weapons, occasionally bumping his shoulder against yours.

He'll lean against you when he's tired.

He'll casually rest his head on your shoulder without acknowledging that he's doing it.

And if you ask him whether he's comfortable?

"Perfectly."

He's also the type to steal your hand and play with your fingers while continuing an entirely unrelated conversation.

If you catch him doing it—

"What?"

"...Nothing."

"That's what I thought."

That stupid grin returns.

And the funniest part?

The crew eventually realizes that their terrifying captain has one enormous weakness.

You.

They've seen him threaten enemies without blinking.

They've seen him laugh in situations where everyone else was terrified.

They've seen him walk into danger like he was bored.

But then you appear on deck and—

"Oh, there they are!"

Immediate grin.

Completely different energy.

And the crew collectively thinks:

Yeah. He's absolutely gone. 😭

🏴‍☠️ Sanzu Haruchiyo | Pirate AU | "The Captain's Favorite"

The sea had always been full of stories about Sanzu Haruchiyo.

Some called him a madman.

Others called him a genius.

There were sailors who swore he'd once sailed straight through a storm simply because he was bored, while others insisted he'd smiled while staring down an entire enemy fleet.

Whatever the truth was, everyone seemed to agree on one thing:

Sanzu was dangerous.

And now...

He had you.

It had started with an encounter at a port town.

You'd been walking along the docks, minding your own business, when you'd noticed a particularly extravagant pirate ship anchored farther out than the others. Its black sails moved lazily in the wind, gold detailing catching the sunlight.

You'd barely gotten a good look at it before someone spoke behind you.

"Pretty, isn't it?"

You turned.

Sanzu.

He stood there in his elaborate pirate coat, hat tipped slightly over his pink hair, one hand resting casually against the hilt of his sword.

That grin was already on his face.

You looked toward the ship.

"...Your ship?"

"Mine."

"It's huge."

"I know."

He smiled wider.

"Want to see it?"

You probably should have said no.

Instead...

You said yes.

That was how you ended up aboard his ship.

And how, several hours later, you discovered that Sanzu had absolutely no intention of letting you simply walk back onto land.

The ship rocked gently beneath your feet.

You stood near the railing, staring at the horizon.

"...So."

Sanzu leaned against the mast nearby.

"So?"

"You kidnapped me."

He raised an eyebrow.

"Did I?"

"You brought me onto your ship and sailed away."

"Correct."

"Without asking whether I wanted to come."

"Also correct."

You stared at him.

He stared back.

Then his grin widened.

"...Sounds like kidnapping to me."

Sanzu laughed.

"There we go."

You crossed your arms.

"You're insane."

"Probably."

"And you're just admitting it?"

"Why wouldn't I?"

He pushed himself away from the mast and walked toward you.

His boots clicked against the wooden deck.

He stopped beside you, looking out over the ocean.

"You know..."

His voice became quieter.

"I didn't bring you here because I wanted another passenger."

You looked at him.

"Then why?"

He glanced down at you.

That usual mischievous expression softened into something much more serious.

"Because I like you."

You blinked.

"...What?"

"I like you."

He said it so casually that you almost wondered whether you'd heard him correctly.

"You've been on my mind since I saw you."

"..."

"And I don't particularly enjoy sharing."

Your eyebrows lifted.

"Sharing what?"

His smile returned.

"You."

"...I'm not an object."

"I know."

For once, there was no joke in his voice.

"I know you're your own person."

He leaned against the railing beside you.

"But I'm selfish."

His gaze stayed on the horizon.

"And when I find something I really care about..."

A pause.

"...I don't like letting it go."

You looked at him quietly.

He finally turned toward you.

"So I made a decision."

"What decision?"

"You're staying."

"...That's not a decision you get to make for me."

Sanzu chuckled.

"You're feisty."

"I'm serious."

"So am I."

The two of you stared at each other.

Then Sanzu sighed dramatically.

"Fine."

He reached into his coat and pulled out a small brass key.

He held it toward you.

"...What's that?"

"Your cabin."

You hesitated.

"You're giving me my own cabin?"

"Of course."

"You kidnapped me and then gave me a cabin."

"Exactly."

"That doesn't make sense."

"You're going to have to get used to me."

You stared at him.

He grinned.

Days passed.

Then weeks.

And somehow...

You became part of the ship.

The crew gradually stopped treating you like a temporary passenger.

You had your own place at meals.

Your own space aboard the deck.

Your own collection of belongings.

And Sanzu?

He was everywhere.

If you were reading near the railing, he'd eventually appear beside you.

If you were eating, he'd steal something from your plate.

If you were talking with one of the crew, he'd somehow end up standing nearby.

Not interfering.

Just...

Watching.

One afternoon, you were sitting on a wooden crate while the ship sailed peacefully beneath a clear sky.

Sanzu approached.

"What're you doing?"

"Reading."

"Looks boring."

"It's not."

He leaned over your shoulder.

"What is it?"

You held the book slightly higher.

"You're not going to understand it."

His eyebrows rose.

"Oh?"

"You're a pirate."

He looked offended.

"I can read."

"I didn't say you couldn't."

"You implied it."

"I really didn't."

He sat beside you.

"...Give it here."

"No."

"Come on."

"No."

Sanzu smiled.

"...You're getting brave."

You looked at him.

"Maybe I am."

He laughed.

"Good."

And then he stayed.

Not because he cared about the book.

You knew that.

He simply liked being beside you.

That evening, the ship docked at another port.

Sanzu disappeared for nearly an hour.

When he returned, he had several bags in his hands.

You looked at him suspiciously.

"What did you buy?"

"Nothing."

"You have six bags."

"Coincidence."

"...Sanzu."

He sighed.

"Fine."

He dropped the bags onto the table.

"I saw some things."

"What things?"

He opened the first bag.

A book.

The second contained clothes.

The third held a small collection of sweets.

Then another bag.

And another.

You stared.

"...Why?"

He shrugged.

"Saw them."

"And?"

"Thought you'd like them."

You looked down at everything.

"You didn't have to."

"I know."

He smiled.

"That's why it's a gift."

You didn't know what to say.

Sanzu noticed.

His expression softened.

"...You like them?"

You nodded.

"Yeah."

"Good."

He leaned back in his chair.

"Then it was worth it."

Later that night, you found him on the upper deck.

The moon reflected across the dark ocean.

Sanzu sat against the mast, his hat beside him.

You approached quietly.

"You bought too much."

He looked up.

"Probably."

"You spoil me."

"Probably."

"You don't regret it?"

He smiled.

"No."

You sat beside him.

For a while, neither of you spoke.

The ship rocked gently beneath you.

Then Sanzu tilted his head onto your shoulder.

You froze.

"...What are you doing?"

"Resting."

"On me?"

"Mhm."

"...You're weird."

"I've been called worse."

You looked toward the ocean.

His eyes closed.

For once, the infamous pirate captain looked peaceful.

Then he murmured—

"Don't disappear on me."

Your expression softened.

"I won't."

His fingers loosely caught yours.

"Good."

A tiny smile appeared on his face.

"Because I'd cross the entire ocean to find you."

You looked down at him.

"...You really are obsessed with me."

His eye cracked open.

That familiar grin appeared.

"Finally figured it out?"

You laughed quietly.

Sanzu closed his eyes again.

The ocean stretched endlessly before the ship.

And somewhere behind you, the crew had already learned one very important rule:

Never, ever threaten the captain's favorite person.