Tsumi

Megumi x reader

Island mission (Series)

Gojo x reader

none

Yuji x reader

None

Toji x reader

None

Others

Sorry that I kept yall waiting that much

Warnings; slight tension

The first hour was nothing but blue.

Sky. Water. Heat.

You dragged a hand through your soaked hair, salt already drying into a sticky crust on your skin. Megumi paced the narrow strip of sand, every step throwing up tiny clouds of white grit.

“I told you this was a bad idea,” he snapped, voice low but sharp.

You spun on him. “Oh yeah? And you couldn’t just—what—stop me?”

His jaw tightened. “You don’t listen.”

“You don’t talk,” you shot back. “Big difference.”

Silence pressed in, thicker than the humid air. Somewhere out in the trees a bird shrieked, the sound strange and metallic.

You both looked up. Nothing but green shadows.

Your stomach knotted, not from fear—yet—but from hunger. Breakfast felt like days ago. The sun was merciless, already pushing noon. Sweat ran down your spine, mixing with the saltwater that hadn’t dried.

“We need food,” you said finally, quieter now.

Megumi glanced down at himself: damp boxers clinging to his hips, sand sticking to every inch of skin. You weren’t much better—black bra and panties streaked with grit. The sight would’ve been funny if your throat weren’t so dry.

“Fresh water first,” he said. “Then food.”

You nodded, even though the trees looked like a wall of green with no promise of anything but bugs. He stepped ahead, scanning the ground like he could will a path into existence. His shoulders were tense, every muscle coiled.

You trailed behind, feet sinking into warm sand that quickly gave way to cooler soil. The air shifted—less salt, more earth. Leaves whispered above you, thick and waxy, dripping with humidity.

“Feels like we walked into a greenhouse,” you muttered.

Megumi didn’t answer, but his eyes kept darting, assessing. The silence of the island was wrong—no waves once you stepped inside, no normal insect hum. Just that strange, hollow quiet.

Something snapped to the left.

You both froze.

A branch lay cracked across the path behind you, still rocking slightly as if something had just stepped there.

Your pulse spiked. You caught Megumi’s eyes—steady but alert.

“Animal?” you whispered.

“Or something worse,” he said.

A chill slid down your damp skin despite the heat.

Megumi motioned for you to stay quiet as he stepped off the narrow trail.

The undergrowth thinned, and a faint hiss reached your ears—a low, steady rush that didn’t sound like the ocean.

Water.

Your heart kicked. “Do you hear—”

“Yeah,” he cut in, already moving faster.

Branches scraped your arms as you followed the sound. The hiss grew into a roar, cool mist threading through the heavy heat. Then the trees opened and you both stopped short.

A waterfall tumbled from a wall of black rock, silver in the sunlight. It crashed into a deep pool so clear you could see smooth stones glowing blue beneath the surface. No salt-air sting, no endless horizon—just clean, fresh water.

For a heartbeat neither of you spoke.

Then you both moved at once.

You dropped to your knees at the edge, cupping handfuls of cold water to your mouth. It was sharp and sweet, like melted ice. You drank until your stomach ached, letting it spill down your chin and soak your chest. The salt and grit of the swim washed away in seconds.

Megumi knelt beside you, silent but drinking just as greedily. Drops clung to his lashes; his hair was darker, almost black from the spray. He let out a quiet breath—half sigh, half laugh—that you’d never heard from him before.

“This,” you gasped, “is the best thing that’s ever happened to me.”

He wiped his mouth with the back of his hand, a rare, small smile tugging at the corner of his lips. “Not arguing.”

You leaned back on your heels, letting the mist cool your sun-burned skin. The pounding of the falls filled everything—the panic of the missing island, the hunger, the fight—all of it faded under the steady thunder of water.

For the first time since the swim, you felt a flicker of hope.

Megumi rose first, brushing damp leaves from his knees.

You shifted back to give him space—too late.

His foot slid on a slick stone and bumped your shoulder.

Your balance vanished.

“Meg—!”

The pool swallowed the rest of your words. Cold shot through you like a shock, bubbles rushing past your ears. You kicked upward and broke the surface with a gasp.

Megumi crouched at the edge, eyes wide. “Sorry,” he said quickly, hand outstretched.

You blinked water from your lashes, the initial chill fading into something almost pleasant. “You’re sorry?” you echoed, taking his hand.

His grip was firm, warm despite the spray. For a second you let him start to pull you up—then you tightened your hold and yanked.

He barely had time to curse before he splashed in beside you, sending another wave across the pool.

You surfaced laughing, hair plastered to your cheeks. “Now we’re even.”

Megumi came up sputtering, water streaming from his bangs. For a heartbeat he just stared, incredulous, then—unbelievably—laughed. A real laugh, low and rough, almost drowned by the waterfall.

You floated backward, treading water. “See? Not the worst way to cool off.”

He shook his head, droplets flying, but the faint smile stayed. The current carried you a little closer, until the distance between you was just a few ripples and the sound of the falls.

The air around you felt different—charged, but quiet. No words, no sudden move, only the steady rush of water and the warmth of his gaze lingering longer than usual.

Then he looked away first, scanning the trees. “We should…check the area,” he said, voice rougher than before.

You bit back another grin. “Right. After we…accidentally dry off.”

Here are all parts of the megumi x reader series!!!

Part one

Part two

Part two!!

warnings: mention of family loss. Coma. Being sold. Illusions

“So… this is where we’re staying?” you asked, forcing a smile despite the exhaustion tugging at your face.

“It’s nothing fancy, but yeah,” Megumi replied flatly.

You both stood at the entrance of a hotel.

The two of you stepped inside, heading toward the check-in desk.

“So, you’re a couple?” the receptionist asked casually.

God, you wished—wait. Where the hell did that thought come from?

“No,” you said quickly, trying to keep your tone neutral.

“Mhm. Sure you’re not,” she muttered, giving you a knowing look. If your face flushed, you could blame it on the heat.

“There’s a room free—157,” she added, sliding the key toward Megumi.

“Thanks,” he said, already sounding annoyed. You just smiled.

Climbing the stairs felt like dragging bricks, both of you worn out from the flight. You pushed open the door—only to see one bed.

“What the…” Megumi mumbled, already turning on his heel. He headed back down to the desk.

“That’s the only room available,” the receptionist explained. “This area’s packed with tourists. There’s another hotel about four miles away.”

“It’s midnight and pitch dark—I’m not walking four miles,” you snapped, more from exhaustion than actual anger.

“Fine,” Megumi grumbled, heading back toward the room.

Great. One bed. Midnight. Heat. Perfect.

You both just wanted to shower and go to bed. Megumi went first to the shower while you unpacked ur things.

The shower ran for a while before the bathroom door opened, a wave of warm steam spilling into the room.

Megumi stepped out with a towel slung low around his hips, damp hair falling into his eyes. A few droplets traced down his chest before disappearing against the edge of the towel.

“You’re up,” he said simply, passing you on his way to his bag.

You grabbed your things and slipped into the bathroom, the mirror still fogged from his shower. The water was warm, relaxing the stiffness in your muscles after the long day. When you came back out, your hair clung to your neck, and you wore nothing but underwear and an oversized T-shirt.

,,I can sleep on the couch”, you said. Trying to be polite.

“You’re not sleeping on the couch,” Megumi said without looking up from the folder in his hands.

“I can if I want to—”

“No. It looks uncomfortable and I’m not letting you.”

You sighed but crossed over anyway, slipping under the blanket on one side. He joined a moment later, leaving a respectable amount of space between you. The hum of the air conditioner filled the silence.

“What about your family?” he asked quietly after a moment.

You hesitated. “They were killed by cursed spirits. A long time ago.”

His gaze stayed on the ceiling. “My dad sold me to the Zen’in clan. My sister’s in a coma.”

You turned your head toward him, but he didn’t look back.

“I’m sorry, life must’ve been lonely” you said.

He gave a small shrug. “I got adopted by gojo after, it wasn’t that bad afterwards.”

,,that’s why ur his favorite student huh” you smiled and turned your head to him

,,shut up” he mumbled

,,it’s so obvious that he likes you” you smiled.

The room went quiet again, but the air felt different now — heavier, but not in a bad way. At some point, your knees brushed under the blanket, and neither of you moved away.

⸻

The next morning

You woke slowly, noticing first that the blanket was heavier than before. Then you realized it wasn’t the blanket — it was his arm, draped loosely around your waist.

Megumi was still asleep, breathing steady, his face relaxed in a way you didn’t see often. You stayed still, listening to the faint hum of the air conditioner and the sound of tourists outside the window.

It felt… calm.

The morning sun was soft but bright, spilling golden light across the quiet beach as you and Megumi finished your coffee at a small table near the shore. The air was thick with the scent of salt and sea breeze, mingling with the bitter aroma of freshly brewed coffee. Neither of you spoke much — the quiet between you comfortable, even familiar.

You packed up the manila folder, flipping it open one last time as you stood and headed toward the water’s edge. The beach was empty, untouched — just the gentle roll of waves and the distant cry of seagulls.

“There it is,” you said, pointing across the stretch of shimmering blue. The island was small but clearly visible, green trees rising against the sky. Not far, but enough to make you think twice.

Megumi looked out as well, his dark eyes sharp but calm. “It’s a swim.”

You smirked. “Easy.”

Without hesitation, you peeled off your shirt and shorts until you were standing in just your black bra and matching panties, the tiny bow on the hip catching the light.

Megumi’s gaze flicked away almost immediately, but you caught the brief glance. “Come on,” you teased softly, “It’s not like it’s the first time you’ve seen a woman in her underwear.”

He rubbed the back of his neck but said nothing. The tip of his ears were slightly red. Stripping down to his boxers, he stepped beside you at the water’s edge.

The ocean was cool, tugging at your skin as you waded in together. The waves pushed and pulled around you as you started the swim, steady and strong.

Then—without warning—a wave slammed into your face, salty water flooding your mouth and nose. You sputtered, blinking hard.

“That was personal,” you muttered, wiping saltwater from your eyes.

Megumi let out a quiet tch sound, the sound low but genuine. “It’s the ocean. It doesn’t care about your feelings.”

You grinned, splashing water back at him. For a moment, the tension between you broke completely, replaced by easy laughter as he splashed you again.

The water tasted harsh and salty in your mouth as you both laughed, the sun warming your skin despite the cold sea.

Eventually, you reached the shore of the island, your arms heavy and your lungs burning just slightly from the swim. You crawled out onto the sand, gasping for air and wiping water from your face.

You turned, expecting to see the familiar outline of the mainland behind you.

But it was gone.

No beach. No hotel. No café. No sign of the place you’d started from.

Just endless blue stretching to the horizon.

Your heart skipped.

You glanced at Megumi, who was already scanning the water, his jaw tight, eyes narrowed.

“It’s gone,” he said quietly.

You swallowed hard.

“Fuck.”

He nodded.

“Fuck.”

————

Part two!!

Sorry yall waited so long

For anyone who doesn’t understand why the island is gone here’s the explanation:

First time writing a story!!!!

English isn’t my first language so if you see any grammar mistakes please don’t judge me

Warnings: none

ISLAND MISSIONS ARE NEVER THIS SIMPLE

The moment Gojo walked into the room grinning, you knew something was wrong.

He tossed a folder onto the table between you and Megumi, the paper sliding to a perfect stop like it rehearsed itself.

“Remote island,” he said casually. “Special-grade curse. Oh, and a special-grade cursed weapon, which we’re hoping isn’t bonded to said curse. But hey, you two’ll figure it out.”

You glanced at Megumi.

He looked exhausted already. “You’re sending us alone?”

Gojo gave an exaggerated shrug, leaning against the doorframe. “You’re my smartest, most balanced pair. Don’t make that face, Fushiguro—you like her.”

You blinked. “Sorry, what now?”

He kept talking. “It’s uninhabited. Shouldn’t be too populated with curses either—though we’re still tracking some unstable readings.” He pointed to the file. “Cliff symbols. Burnt trees. Weird coastal disturbances. Probably a low-grade Domain situation. Worst case, illusion-type.”

Megumi narrowed his eyes. “So not just a beach stroll.”

Gojo’s grin widened. “I mean, there is a beach.”

You opened the folder and scanned the photos. Aerial shots of the island. Trees scorched black at the edges. A cave entrance near the shore, with distorted symbols etched into the rock face.

And then one image:

A sword half-buried in sand, pulsing faintly with cursed energy even through the photo.

You frowned. “We’re retrieving that?”

“Nope,” Gojo said brightly. “You’re containing it. Until we can bring a team to extract it safely.”

You shut the folder with a sigh. “So we’re babysitting a sword?”

“With a nasty bite,” he added. “And possibly a pet curse attached.”

Megumi sighed, rubbing his temple. “When do we leave?”

Gojo’s smile turned lethal.

“Now.”

————

You packed light.

Nothing fancy—just the essentials.

A few shirts. Two pairs of shorts. Your Jujutsu High uniform. Underwear.

And… a bikini.

“In case we’re going in the water,” you told yourself.

Not because you thought you’d be sunbathing.

Not because you wondered how Megumi would look wet and shirtless.

Definitely not.

You zipped your duffel closed with a sigh, slinging it over your shoulder just as headlights swept across your window.

Ijichi.

⸻

The car ride was quiet.

Ijichi sat stiff as ever in the front seat, his knuckles white on the wheel as he merged onto the highway. You sat in the back with Megumi, both of you silent—but not awkwardly.

The kind of silence that felt practiced.

Like you’d done this before.

You glanced at him. His arms were folded. Eyes half-lidded. He looked like he hadn’t slept, but not in the usual overworked-sorcerer way.

More like… he was thinking.

Hard.

“You okay?” you asked quietly.

He didn’t look at you, just nodded. “Yeah. Just want to get this over with.”

———

Mid-Flight

You sat by the window. Megumi had the aisle.

The mission folder lay open on the tray table between you, both of you leaning in to scan the notes one more time.

“Slight distortion near the northern cliffside,” you murmured, eyes skimming the details. “Possibly illusion-based domain. Doesn’t seem active yet.”

“Could activate if we get close enough,” Megumi muttered, tapping his finger on the grainy photo.

You huffed softly. “I bet it’s not that bad. Once we’re on the island, we grab the cursed weapon, then attack the curse—if it’s not bonded to it.”

You leaned back in your seat.

Being on a mission with Megumi was like talking to yourself.

He rarely spoke unless absolutely necessary.

And when he did, it was clipped, efficient, emotionally flat.

If you’d gone with Yuji, he would’ve cracked a joke by now. Or at least smiled. Or asked what snacks you brought.

Megumi turned a page in the file.

“If the curse is bonded to the weapon, we’ll need a way to separate them first.”

You sighed.

All these what if questions were driving you insane.

Not to mention his stone-face expression—like empathy just… wasn’t installed.

You leaned against the window, letting your head rest against the cool surface.

And then came the sound.

WAAAAAAAHHHHHHHHHHHHHH—

Right behind you.

A toddler.

Screaming.

You weren’t usually bothered by kids, but this one?

He’d been kicking the back of your seat for thirty minutes straight and crying like someone cursed his juice box.

You exhaled slowly.

Megumi didn’t react.

Of course he didn’t.

You peeked at him. Eyes half-lidded, expression unreadable.

“How do you not go crazy?” you muttered.

He shrugged. “I tune people out.”

Must be nice.

You closed your eyes anyway.

You weren’t going to let a crying child—or a stoic sorcerer—ruin your chance to sleep.

Fushiguro woke you up before the plane landed.

“L/n, we’re landing now,” he said quietly.

His hand tapped your shoulder—gentle. Like he didn’t want to scare you.

That’s what you told yourself, at least.

You woke up, but not because of him.

The toddler behind you had started kicking your seat again.

Of course.

You groaned under your breath as the plane wheels hit the tarmac with a thud.

People immediately stood up, cramming into the aisle like their lives depended on getting out first.

No patience. No logic.

Megumi stood too. Calm. Controlled.

He grabbed his backpack—and yours.

Without a word, he handed it to you.

“Thanks,” you mumbled, voice still heavy with sleep.

⸻

Outside – Airport Exit

The heat hit you like a punch in the face.

Thick, humid, and immediate.

You blinked up at the sky, squinting through the brightness, adjusting your grip on your bag.

Then you felt it.

Tiny fingers in your hair.

You turned fast—already annoyed—and locked eyes with the little monster that had spent the entire flight torturing you.

The toddler.

He was grinning.

Tongue out.

Fist still wrapped around your strands like it was a leash.

“Ow—hey!”

He tugged harder.

Before you could fully lose your mind, his mother yanked him back by the arm, muttering an awkward apology before disappearing into the crowd.

You stared after them, fixing your hair.

“Fuckass kid,” you mumbled under your breath.

Megumi didn’t say anything.

But you were pretty sure you saw the corner of his mouth twitch.

FIRST CHAPTER!!!

Hope yall like it! I’m currently trying to figure out how to do a masterlist if anyone knows how to just text me I’m to stupid to figure it out alone (seriously I’m to dumb)

I’m TSUMI!

I’m mostly writing

Megumi x reader

Gojo x reader

Yuji x reader

And others!!!

Mostly JJK men !!

I do write smut,angst or fluff