Mash-Up Anime: Teenage Assassin Enrollment.-Chapter 13 - Masochist Dream

Sayuki lay in bed, staring at the ceiling as moonlight spilled softly through her curtains. The events of the day played over and over in her mind—Shun's voice, his smile, the way he'd looked at her when he offered to help... it was enough to make her heart race.

She hugged her pillow tightly, trying to calm herself, but it was no use. Why am I like this? It's only been one day...

But it wasn't just his looks. It was the way he carried himself—how every word he spoke felt deliberate, controlled, like he already knew exactly what she needed before she did. He didn't flirt like a boy desperate for attention. He commanded it. He owned it.

Her thoughts spiraled, and before long, sleep took her.

Sayuki began to dream, she found herself in a vast bedroom bathed in deep crimson light, the air thick with the scent of sandalwood and something darker—something that coiled low in her stomach. The sheets beneath her were cool silk, but her skin burned.

She was on her knees, wrists resting on her thighs, back straight in perfect obedience. Around her neck was a sleek black velvet collar, tight enough to remind her of its presence, with a silver ring at the front. A leash trailed from it, pooling between her thighs like a claim.

She didn't remember how she got here.

But she knew why.

A shadow moved at the edge of the room, and then—him.

Shun.

He stepped forward, his presence swallowing the space around her. Tall, commanding, his gaze sharp enough to cut. He wasn't just looking at her—he was inspecting her.

"Good girl," he murmured, voice like velvet over steel.

"You kept your position."

A shiver raced down her spine. She hadn't even realized she was supposed to stay still, but the praise sent heat flooding through her.

His fingers curled around the leash, and with a slow, deliberate tug, he pulled her forward just enough to feel the pressure. Not painful. Perfect.

"Do you know what you are?" he asked, tilting her chin up with his free hand.

Sayuki's breath hitched. Her lips parted, but no words came—only a soft, needy sound.

Shun's thumb brushed over her bottom lip.

"Use your words, pet."

"Yours," she whispered, the admission spilling out like a confession.

A smirk curled at the edge of his mouth.

"Louder."

"I'm yours," she repeated, voice trembling.

His grip tightened in her hair, just shy of painful, and she melted.

"Again."

"I'm yours!" The words burst from her, desperate, hungry.

Shun's eyes darkened. "And what does that mean?"

Her body burned. Her mind was fog, all instinct, all surrender.

"It means... I belong to you." She arched into his touch, her voice dropping to a whimper.

"It means I'll be good."

A low hum of approval rumbled in his chest.

"You will." His fingers trailed down her throat, over the collar, possessive.

"Because good pets get rewarded."

A whine escaped her, high and pleading. She wanted it—needed it—his praise, his control, the way he turned her into nothing but his.

With a sharp yank on the leash, he brought her flush against him, his breath hot against her ear.

"And bad ones?" His teeth grazed her earlobe. "They get punished."

A full-body shudder wracked her.

Yes.

Morning Light

Sayuki awoke with a gasp, her skin feverish, her fingers clutching at the sheets. The dream clung to her, sticky and sweet, the phantom weight of the collar still pressing into her throat.

She touched her neck, half-expecting to feel the velvet.

Nothing.

A frustrated whine built in her chest.

More.

She needed more.

More of his voice, his hands, his control.

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Rolling onto her stomach, she buried her face in her pillow, thighs pressing together.

"Shun..."

His name was a prayer. A plea.

And she was more than ready to worship.

Meanwhile, in another residence.

Kaguya lay atop her pristine bed, her gaze fixed on the ornate ceiling above. The soft rustle of the sheets accompanied her restless movements as she turned over for what felt like the tenth time that hour. The room, usually a sanctuary of order and control, now echoed with the fluttering chaos in her chest.

She closed her eyes, but sleep wouldn't come.

'Shun Satsujin...'

His name surfaced in her thoughts again, unbidden and persistent. She could still picture him earlier that day—his calm confidence, the way he spoke with clarity, and how naturally he offered his help with the student council's tasks. He'd been so composed, so effortlessly kind... and so devastatingly handsome.

'Ugh... what is wrong with me...?' Kaguya mumbled, burying her face into her pillow.

Her cheeks burned, and a strange warmth crept through her chest. She wasn't used to this—this flurry of emotions she couldn't quite grasp or label. As a Shinomiya, she'd been trained to be rational, calculating, always composed... but now? Her thoughts spiraled.

Was this admiration? Fascination? Or something far more dangerous?

She sat up abruptly, placing a hand over her heart as if trying to still its rapid beat.

'Why is my heart beating so fast every time I think about him?'

And yet, the way he smiled at her—no, at everyone—was sincere. It wasn't forced, nor calculated. That warmth... she had never experienced anything like it before. Not from family, not from peers.

She sighed and clutched a nearby pillow to her chest, her lips trembling into a soft pout.

'How can someone make me feel this way after just one day...?'

Her eyes wandered to the window, catching the faint shimmer of moonlight outside. She hated to admit it—but her heart was not under her usual control. She longed to see him again... to hear his voice.

Kaguya Shinomiya, the ice queen of Shuchiin, was flustered. And she didn't even know why.

Elsewhere in the Shinomiya residence...

From the corner of the spacious room, Ai Hayasaka stood in silence, arms crossed as she leaned against the doorframe of Kaguya's bedroom. The glow of her phone screen dimmed as she locked it, eyes lifting to observe her mistress's behavior—again.

Kaguya had tossed and turned for over an hour now, her cheeks occasionally flushed, and her muttering had become more frequent. While Hayasaka had seen her in a variety of emotional states, this... this was different.

'Shun Satsujin.' Kaguya mumbled again, hugging her pillow like a lifeline.

Hayasaka raised a single eyebrow. 'So that's what this is about.'

She took a quiet step forward and sighed under her breath. 'That guy again...'

Shun had only arrived recently, and yet he'd managed to worm his way into Kaguya's thoughts faster than any boy ever had. And that wasn't just rare—it was unprecedented. Kaguya Shinomiya didn't crush. She schemed. She calculated. She controlled.

But with Shun? All that elegance crumbled. And Hayasaka noticed everything.

'Too smooth.' she thought, folding her arms again.

'Way too smooth.'

Shun's behavior didn't come off as fake, but Hayasaka trusted her instincts. His calm demeanor, how easily he got along with nearly every girl he met, and the way he spoke with just the right tone—it wasn't coincidence. It was practiced. Calculated. Controlled.

He reminded her of a professional host, the kind that could read people like books and turn pages however he pleased.

Hayasaka narrowed her eyes.

'If he hurts her... no matter how hot he is, he's going to regret it.'

Still, she couldn't deny something else: Kaguya seemed happy. Genuinely confused, but happy. She hadn't seen her like this before—flustered, dreamy, awkwardly clutching a pillow like some lovesick teenager.

Hayasaka turned away and pulled her phone back out, fingers tapping quickly as she opened a new file under her private notes.

[ Subject: Shun Satsujin]

[ Current Assessment: Potential threat ]

[Action Plan: Observe further. Interact directly. Gauge intentions. ]

She smirked slightly.

'Guess I'll get closer and find out just how dangerous this guy really is.'

And if he turned out to be more than just a flirt? Well... maybe even Hayasaka would start to understand Kaguya's sudden fascination.

The morning sunlight streamed through the tall windows of the classroom, casting a soft glow across the polished floors and desks. Shun sat comfortably in his seat, a playful smirk on his lips as he chatted with Marin Kitagawa and Lilysa Amano, both leaning in with interest.

"So," Marin grinned, eyes sparkling with excitement.

"how was it? Did you finish the game?"

Shun chuckled, taking a sip from his drink.

"Yeah, I played through the first part last night. It was... entertaining, to say the least. The characters were a little cliché, but charming. The art was well done, and the pacing surprisingly smooth."

Marin beamed, clearly proud.

"Right? I knew you'd appreciate it!"

Lilysa tilted her head curiously. "What did you think of the main heroine?"

"She was adorable," Shun replied.

"Though honestly, I kept imagining how the dynamic would change if her personality were a little more bold. Still, it gave me a few ideas for club activities—maybe cosplay-related events?"

Marin's eyes lit up even more. "Now that's the energy I like!"

Shun smiled, though part of his attention drifted toward another direction. His gaze landed on Komi Shouko, who sat quietly with her usual reserved expression, her pen gliding gracefully across her notebook. Her calligraphy-like handwriting stood out—elegant, precise, beautiful.

'Perfect.'

After excusing himself from Marin and Lilysa, Shun approached Komi with a gentle smile, careful not to startle her.

"Hey, Komi-san." he said softly, offering a respectful nod.

"I couldn't help but notice how beautiful your handwriting is. Have you ever thought about joining a Calligraphy club?"

Komi blinked, stunned by the sudden attention. Her cheeks flushed pink, and she fidgeted with the corner of her notebook before giving a small, shy nod.

Shun's smile deepened. "That's great. I'm gathering members, and I think you'd be a perfect fit."

Komi's blush deepened, but she nodded again—this time, a little more confidently.

As he returned to his desk, he spotted Miku Nakano not far off, reading another book about the Sengoku period. With a light tap on her desk, he leaned in slightly.

"Miku-chan." he said casually.

"Have you ever thought about joining a club that focuses on calligraphy? With your interest in history, especially the Sengoku era, I think you'd bring a lot of insight to it."

Miku looked up, brushing a strand of hair behind her ear. "Calligraphy, huh...?"

"Historical texts, old-style writing techniques, famous quotes from warlords," he added with a wink.

"It's right up your alley."

Miku blinked then blush but clearly interested now. "...Alright. I'll join."

Shun's grin was warm. "Awesome. Welcome to the club."

Two new members secured.

As Shun returned to his seat, he was met with a raised brow and a smirk from Yanagi Uzaki, who leaned lazily on her desk, watching him with amused eyes.

"You've been busy this morning," she said, her tone teasing.

"Recruiting already? What's with the sudden interest in calligraphy, huh?"

Shun gave her a relaxed smile. "Thought it might be a good club to revive. I bumped into a girl named Sayuki Tokihara yesterday. She's the last member of the Literature Club, and I offered to help her out for a while. Got me thinking about starting something a little more my style."

"Ah..." Yanagi's smirk widened.

"So now you're seducing literature girls and calligraphy girls? You really are gathering heroines like you're the protagonist of a dating sim."

Shun chuckled, resting his chin on his hand.

"Am I? Didn't notice."

"Oh, please." She nudged his arm playfully.

"You've been here for two days and already have girls blushing left and right. I mean, Komi-chan practically melted when you invited her. And Miku? She never listens to anyone unless it's about history."

"I just talk to them," Shun said with a sly smile.

"Maybe they like that someone actually sees them."

Yanagi rolled her eyes, but the faint blush on her cheeks betrayed her interest.

"Dangerous words, mister. Keep that up and I'll start wondering if I'm next."

Shun leaned in slightly, lowering his voice just enough. "Who says you're not already on the list?"

For a split second, Yanagi faltered—just a flicker of surprise in her sharp gaze before she laughed it off.

"Tch... smooth," she said, flicking his forehead.

"You're lucky you're good-looking and clever."

Shun grinned.

"It's part of the charm."