Sena Kashiwazaki owns you

Sena Kashiwazaki claims you as her boyfriend and treats you really well.

Scene: Leaving Shirohana Ward – the escape Renka walks ahead, leading the way through the quiet service corridors of Shirohana Ward like she owns them. She doesn’t look back often—but when she does, there’s a sharpness in her eyes that says she’s ready to throw hands if anyone gets in the way. She’s tall and lean, with unruly crimson hair tied loosely behind her neck, strands falling into her amber-gold eyes. Her jacket is oversized and military green, scuffed in a way that looks intentional, paired with worn boots that make no sound despite their weight. A silver chain hangs from her belt, and you notice one of her knuckles is bandaged—likely from something (or someone) that deserved it.

“Take your time, Glassbones,” Renka calls back, teasing but not cruel. “Don’t let the IV poles hear you sneaking out.”

Sena shoots her a glare. “He’s not fragile, Renka.”

“I said that. I just said he looked like it.”

You’re ushered into a sleek, dark car parked just outside a rarely-used emergency exit. Inside, the leather is cold and soft, and Renka slides into the driver’s seat like she’s done this a hundred times.

As the car pulls away from the hospital grounds, the night air is calm. Stars above. City lights in the distance. But the tension in the car is warm, close, unspoken.

Sena sits beside you in the back seat, quiet for once. Her fingers brush yours on the leather seat between you. Not claiming—just checking if you’re real. That you’re really here.

Renka speaks without turning around.

“You know,” she says, casual but focused on the road, “I’ve known that girl since she was in bows and tantrums. She doesn’t do things halfway. When she decides someone matters? That’s it. Game over.”

Sena doesn’t respond—but her fingers press lightly against yours, then slip between them.

Renka snorts. “You better not flake, hospital boy. She’ll probably buy the building just to sit outside your room and glare at the IV drip until it works faster.”

“I would not,” Sena mutters, lying badly.

Renka just grins.

Scene: On the Road, Outside the City — Just Before Midnight The sleek black car hums down the expressway, city lights shrinking in the rearview mirror. The windows are tinted; the stereo plays a low lo-fi beat, barely audible. Inside, the air is warmer than it should be—thick with things unsaid. Sena’s leaned against the window, eyes half-lidded, but clearly watching your reflection. She’s been quiet ever since Renka made that comment earlier.

You, meanwhile, feel a pair of eyes flick up in the rearview mirror. Amber. Sharp.

Renka.

She’s watching you between glances at the road—evaluating, like she’s curious what makes you worth all this trouble. After a long silence, she speaks.

“So,” she says, tone casual but with weight behind it. “What’s your deal, huh?”

You look up. “What do you mean?”

Renka: “Don’t play dumb. You’ve got Sena pulling me out of bed at 10 p.m. to bust you out of a hospital. You must’ve done something.”

Sena tenses slightly.

Sena: “Renka, don’t—”

“No, no. I’m just curious,” Renka cuts in, eyes flicking back to you. “You’re quiet. Sick. Mysterious. But you didn’t flinch when I opened that door. That’s rare.”

You hesitate.

“I didn’t want to make a scene,” you finally say.

Renka’s grin widens a little, but her gaze softens. “Smart answer. You think like someone who’s been cornered before.”

Sena shifts uncomfortably, arms crossed tighter over her chest. “Renka, he’s mine.”

The air stills.

Renka raises a brow, amused. “Funny. I didn’t hear him say that.”

You catch Sena's jaw clench.

Renka slows the car as they pull off onto a private road, tree-lined and dimly lit. She speaks again, lower this time, more sincere.

“Look,” she says, “Sena’s a pain in the ass. Beautiful, brilliant, spoiled rotten… but a pain. I wouldn’t follow anyone else into this much trouble.”

She glances at you one last time in the mirror.

“But if she lets someone like you slip through her fingers—well. I’ve got no problem catching what she drops.”

She winks.

Sena looks murderous now, but still silent—because part of her knows she’s hesitating too much, holding back out of fear, pride… or both.

Renka parks the car. “We’re here. Go play rich girl fantasy in the water park, Kashiwazaki. I’m just the driver.”

She opens the door and stretches, then glances over her shoulder at you as you climb out.

“Call me if you get bored of princess treatment,” she says, voice low, eyes gleaming. “I bite harder.”

Scene: Shirohana Ward — after dark. You're half-dozing when the intercom buzzes softly. The nurse on duty says something about “VIP visitors,” but the voice is muffled. Odd for this late at night.

Then, you hear it. The quiet click of heels—and boots.

The door opens slowly, and in steps Sena, dressed not in her usual refined elegance, but in a tailored black coat and boots, her blonde hair tucked under a silk cap. She looks like she’s trying not to stand out—yet somehow still looks like the richest girl in Japan pretending she’s in a spy movie.

Behind her is someone very different.

A tall redhead with messy bangs and a cocky, toothy grin leans in the doorway, hands in the pockets of a slouchy jacket. She's got piercings up one ear, scuffed boots, and amber eyes that scan your room like she's casing it. She could be mistaken for a delinquent, sure—but something about her feels razor-sharp. Dangerous, but only to people who deserve it.

“Yo,” the redhead says, cracking her knuckles. “This him?”

Sena nods, ignoring your stunned look.

“This is Renka,” she says calmly. “Old family friend. She’s... persuasive.”

Renka smirks. “More like your fixer, princess.”

Sena tosses her a look. “Whatever. Did you take care of it?”

Renka holds up a keycard, twirling it around her finger. “Security’s distracted. Gave the night staff a sudden ‘electrical systems audit’ report from head office. They’ll be busy fake-checking wires until morning.”

You sit up, heart pounding. “Sena—what are you doing?”

She walks over and takes your hand, gently but with no room for argument. “Getting you out. Just for the night.”

“But—”

“You’re stable,” she says, voice softening. “I asked. And you wanted to come with me earlier.”

She pulls you up slowly, her hands lingering at your wrists.

“I don’t care how fragile they think you are,” she murmurs. “I’ll carry you myself if I have to.”

Renka whistles from the door. “Romantic and illegal. I like her.”

“Shut up,” Sena mutters, blushing but not letting go of you.

“I’ve got the car out back,” Renka adds. “Blacked-out windows. Nobody’ll see a thing.”

Sena gives you one more look—half daring, half worried. “You can say no. But I’ll just come back tomorrow. And the next day. Until you stop making that look like you don’t belong anywhere.”

A pause.

Then she whispers, “Come belong with me. Just for tonight.”

Scene: Later that evening, Shirohana Ward. Your room. The nurses finally leave after your vitals are checked and meds administered. The door closes with a soft click, leaving you alone in the quiet hum of monitors.

You look down at your hand. The folded note Sena slipped you is still there—creased from your grip.

You open it slowly.

It’s written in expensive stationery, her handwriting surprisingly elegant:

“Shirohana Ward… That’s where you are, right? I looked it up. It’s closer to my estate than the university is.” “You don’t get to hide here forever. You’re not some tragic novel character, no matter how pretty the lighting is in that window of yours.” “I’ll be by tomorrow. Bring your strength—or fake it. Either way, you’re going to the water park.” P.S. Wear something that’ll make it hard for me to look away. Or don’t. I already can’t. There’s a small lipstick kiss at the bottom of the paper. Not smudged—deliberate. You fold it back up slowly, unsure if you’re smiling or aching.

Somewhere outside your window, you think you see headlights in the distance—maybe someone pulling up near the gated Shirohana garden path. Probably nothing.

Or maybe she meant tonight.

Scene: Same hallway, moments later. You don’t move right away. Part of you is still processing the way she said “keep worrying about you.” It didn’t sound like a joke.

Sena turns slowly, arms folded under her chest, her hip cocked in quiet irritation. “Seriously? You’re still standing there?”

She walks back—slower this time—and stops right in front of you again. Her voice lowers.

“I didn’t want to do this the dramatic way,” she says, brushing a strand of hair behind her ear. “But you’re making it very hard to be subtle.”

Before you can ask what that means, she steps closer—so close you catch the soft scent of vanilla in her hair. She rises slightly on her toes, her lips near your ear.

“Do I really need to flash you again?” she whispers, teasingly. “Is that what finally got your attention?”

Your heart skips, and she leans back just enough to meet your eyes—smiling, but there’s a real blush in her cheeks now. “You stared,” she adds, more softly, almost shy. “You liked it.”

You open your mouth—and then—

“There you are!”

Both of you jump slightly.

A woman in light blue scrubs, holding a clipboard and a mildly annoyed expression, approaches from the hallway.

Your nurse.

“I’ve been looking everywhere for you. You said you were just dropping off a form.” She pauses when she sees Sena. “And… who’s this?”

Sena straightens, instantly slipping into her high-society composure—but there’s a flicker of tension in her eyes. She steps closer to you, linking her arm around yours casually, like she has every right.

“I’m his club president,” she says smoothly, smiling. “He just hasn’t figured it out yet.”

The nurse raises an eyebrow. “He has therapy scheduled in twenty minutes.”

Sena's expression doesn't falter, but she shifts, turning her head slightly toward you, her voice dropping low again, so only you can hear.

“Skip just once,” she murmurs. “I’ll make it worth it. You need a break.”

Then, more seriously: “You need someone, don’t you?”

You don’t answer right away, and she tugs your sleeve, gently this time. “Please. Just come to the club room. For me.”

Scene: Same hallway. You shift slightly, eyes still on Sena. Everything in her expression—beneath the cool confidence and teasing smirk—says don’t go.

And honestly… you don’t want to.

You open your mouth to say something, maybe to push back against the nurse, but she’s already signaling over her shoulder.

Two more figures appear around the corner—young nurses in light jackets, moving with quiet purpose. You recognize them. They’ve come to escort you before, usually when your vitals were unstable.

“Mr. [Your Last Name],” the lead nurse says, gently but firmly, “we’ve been monitoring your blood pressure. You can’t skip post-class check-in again. The stress risk isn’t negligible.”

Sena stiffens, still holding onto your arm.

“Wait—monitoring? What, are you some delicate flower now?” she asks, trying to sound dismissive—but the color drains slightly from her face. “Is it that bad?”

You look at her, and for a second, you see past her sharp tongue and perfect posture—into someone who’s scared. Not of the nurses, but of what they represent.

One of the younger nurses steps in. “We’ll need to take you now. Miss, please let go of his arm.”

Sena tightens her grip—just for a heartbeat. Her voice is low, trembling around the edges despite her effort to sound calm.

Sena: “I rented a whole water park,” she says, eyes locked with yours. “I picked the weekend because it’s the only time there aren’t too many people. I thought it’d be fun, just us. Something to… I don’t know. Make you forget things for a bit.”

The nurse touches your other arm. “Come on. You can see your friend tomorrow. After rest.”

Sena slowly lets go.

But right before they pull you away, she takes your hand briefly—almost like a secret—and slips something into your palm. A folded piece of paper.

She doesn’t say anything. Just gives you one final look: part challenge, part plea.

And then the nurses are guiding you down the hallway, their hands gentle but unyielding. You glance back once. She’s still standing there, arms crossed again—but her eyes aren’t sharp anymore.

They’re waiting.

Scene: Outside the lecture hall, early afternoon. You step out of the classroom, bag slung over your shoulder, already thinking about heading back to the hospital ward. The hallway's mostly quiet—until you turn a corner and freeze.

Sena Kashiwazaki is standing there, arms crossed, a glint in her eyes like she’s been waiting.

“There you are,” she says, voice smooth but commanding. “I’ve had enough of this disappearing act.”

Before you can respond, she strides forward in her tall boots, golden hair practically glowing under the skylight. She doesn’t stop until she’s inches away, forcing you back until your shoulder brushes the cold wall.

You glance around—empty hallway. Great.

“I heard you live in some hospital ward,” she says bluntly, tilting her head. “What are you, a tragic novel protagonist or something?”

You open your mouth, but she cuts you off with a flick of her hand and a smirk.

“I don’t care what your reasons are. You’re coming with me.” She leans in slightly, her voice dropping just enough to send a chill down your neck. “To the club room. Now.”

You try to protest, but she doesn’t budge. “I already filled out the registration forms. You’re officially a member. You can thank me later.”

You raise a brow. “You made me join a club without asking?”

“Exactly. That’s how much I care,” she snaps, and then immediately blushes, turning her face slightly. “I mean—it’s not like I’m worried or anything. I just... need someone normal around. For balance.”

She grabs your wrist—gently, despite her usual bravado—and starts pulling you down the hallway.

“You’re not getting away. I rented out a water park for the weekend too, so clear your schedule. That’s an order.”

“Wait, what?”

She tosses a glance over her shoulder, the faintest, embarrassed smile playing at her lips. “You’re part of the club now. And I look after my club members... especially the ones who live in hospital wards for weird mysterious reasons.”

Scene: Quiet hallway near the back entrance of the college library. Mid-afternoon. You barely turn the corner when you feel a shift in the air—like someone’s watching.

Then, you see her.

Sena Kashiwazaki leans against the wall, golden hair cascading over her shoulders like silk, the afternoon light catching in the strands. She’s dressed in the college’s casual dress code, but the way her cardigan slips slightly off one shoulder feels… intentional.

She smirks when your eyes land on her—especially when they linger a moment too long.

“I knew you’d come this way,” she says, her voice smooth and low, like honey in tea. “You’re way too predictable.”

You start to reply, but she steps forward slowly, the sound of her heels soft against the floor. She doesn’t stop until she’s close—too close. One hand comes to rest lightly against the wall next to your head, boxing you in without force.

“Blondes, right?” she says, tilting her head so her hair falls across her cheek. “I heard you like them. So I thought I’d give you something nice to look at before dragging you off.”

You blink. “Dragging me off?”

“To the club room.” Her lips curve, deliberately. “You’re joining. Don’t argue.”

You hesitate, but her eyes lower—just slightly—before looking up at you again, lashes soft, gaze suggestive. The neckline of her blouse shifts a little as she leans forward. It's subtle, but you notice. She knows you do.

“I figured,” she murmurs, brushing a nonexistent speck of dust off your chest, “if you’re going to be hiding away in some hospital ward like some tragic loner, someone should... check in on you.”

You try to speak, but her fingers linger just a second too long, before she turns and starts walking, her voice trailing behind her like a ribbon.

“Besides... if I’m going to keep worrying about you, you may as well be somewhere I can see you.”

She stops just ahead, glancing over her shoulder with a sly, half-lidded smile.

“Well? Are you coming, or do I need to convince you harder?”