Mash-Up Anime: Teenage Assassin Enrollment.-Chapter 18 - Kawakami’s feelings

Okay, I decided No Supernatural and focus more on grounded action and stuff.

Though, still considering adding Gate in the future.

R𝑒ad lat𝒆st chapt𝒆rs at free𝑤ebnovel.com Only.

If y'all have suggestions on action anime or series to be added feel to tell me.

I'm already considering adding armed girl's machiavellism for kirukiru amou. And maybe Dragon Rioting, Baki and Kengan Ashura.

Kenichi Greatest Disciple is also an option.

Frankly, I feel like this is a remake of Victorious Fighter since I got carried away with the power scale with that one.

At the moment, I'm trying to organise my thoughts on how to deal with the upcoming arc since the first week mini arc ended.

Also, action comes later unless y'all want a flashback arc when MC went and met Revy and Koko (Jormungandr series) for the first time.

This is a Zongman Slice of life so the action won't come soon. I'm focusing on the girls.

That aside, hope y'all pray that I am able to get inspiration and ideas to provide you some good shit.

Also, I change things a bit, idk much about Kaguya-sama and simply using my privilege as an author to change things for my own convenience. Though, it's not a big change but not Canon.

Before I forget, Kawakami smut will occured soon. Even if it's 1 Week, I don't care, screw logic! I mean I played erogame and damn to they screw rather quickly.

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Ai sighed quietly, closing her laptop as she leaned back in her chair. Her thoughts drifted to the fragments of her observations, piecing them together like a jigsaw puzzle she wasn't quite ready to solve. Despite the little direct interaction she had with Shun, it was enough to raise more questions than answers.

She had been trained—groomed, even—to detect ulterior motives. To recognize the shift of tone, the twitch of a smile, the subtle cues that differentiated sincerity from deception. People always had a reason for attachment: affection, ambition, loneliness, lust, or loyalty. Sometimes, a dangerous cocktail of all the above.

And Shun Satsujin... he wasn't exempt.

Ai had noticed it. The way he looked at her. At Kaguya. At Chika. There was intention—controlled and calm, but not without weight. He was drawing them in, and Ai couldn't ignore it. It wasn't just her paranoia. She had proof.

During lunch, she had trailed him—sat at a different table, nearby. Close enough to observe the subtle tension between him and the girls around him: Miku Nakano, Lilysa Amano, Komi Shouko, Yanagi Uzaki, Marin Kitagawa, Ako Tamaki, Maria "Masha" Kujou, and Sumire Yoshizawa. Even Alya and Sayuki from Calligraphy club. Not to mention the faculty—Yor Briar, Shizuka Marikawa, and even Yuko Sagiri. She had met a few of them in passing, and they all carried the same glow.

'They looked at him like he made them feel seen.'

Each girl reacted differently. Some blushed. Others tried to act unaffected, only to linger longer than they should've. But all of them felt something when he was around—something they couldn't fake. And that... was a problem.

Because Ai was no different.

She could rationalize it. Her awareness of her own feelings should give her an edge, right? She wasn't falling—she was investigating. But even she had to admit, his magnetism wasn't just about looks or smooth words. There was an authenticity to him that disarmed suspicion... even hers.

And yet... it was too perfect.

No one is that effortlessly charming unless they've been trained to be.

"Is he some kind of teenage assassin...?" Ai muttered under her breath, tapping her finger on the table. It wouldn't be strange. Not impossible.

There were whispers of other schools dealing with prodigies like that. But this was Shuchiin. A fortress wrapped in wealth and influence.

Any attempt to hurt a student—especially someone like Kaguya-sama—would be met with overwhelming force. The academy was protected by more than just teachers; the combined arms of police and underground security watched the school like hawks.

Still... what if Shun didn't need to harm anyone physically?

What if his power was influence?

What if he was someone trained to manipulate, to charm, to infiltrate? To weaken from the inside out—not with bullets or blades, but with subtlety and persuasion?

"Is he trying to coax Kaguya-sama? Lure her into lowering her guard, only to take her out when no one expects it...?"

The theory should've made sense. But something about it didn't add up.

"...No," she murmured.

Shun's words could be shameless, even flirtatious—but there was no deceit in them. No malice. When he said Ai was "genuine," it wasn't just flattery. It felt like a truth wrapped in mischief. And when he spoke to Kaguya... it wasn't about conquest. It was like he was challenging her. Encouraging her to be bolder, freer. Having a war. Then again Love is War.

That wasn't how a manipulator worked. That was... something else.

Ai bit her lower lip, gaze sharpening.

He might have a hidden agenda—but if he did, it wasn't destruction. In his own twisted way, he was helping them. Whether it was guiding Komi to be more expressive, making Sumire smile after training, or encouraging Kaguya to loosen her emotional armor—he was making them grow. Changing them.

'And that...' made him more dangerous than any assassin.

Because Ai didn't know whether to stop him... or protect him.

Meanwhile, groaning as sunlight filtered through her curtains, Sadayo Kawakami stirred under her blanket, her head pounding from the previous night's drinks.

"Ugh... never again," she muttered, sitting up and rubbing her temples.

The clock showed it was later than she thought. With a mild panic, she rushed to her bathroom, still in a tank top and shorts. As she opened the door—

She froze.

Standing there, water running down his back and steam rising around him, was Shun—completely naked and unbothered, his sculpted frame on full display.

Her eyes traveled before she could stop them. Chiseled chest, well-toned abs... and then— Her gaze dropped lower, and her jaw followed suit.

'W-What the hell!? How massive is he!?'

Kawakami felt the blood rush to her face, her hangover momentarily forgotten as her cheeks flared bright red.

Shun, ever the tease, turned his head slightly and smirked, his voice smooth. "Morning, Miss Kawakami. Enjoying the view?"

"A-Are you serious right now!?" she stammered, slamming the door shut with a loud thud. "Lock the damn door next time, you shameless brat!"

"Where's the fun in that?" he replied through the door, chuckling.

Still flushed and annoyed, Kawakami leaned against the wall, muttering, "Unbelievable..." Her headache was still there, but now it was joined by a heat she couldn't easily explain.

Deal with it later, she told herself, trying to regain composure as she headed back to the kitchen. Behind the door, Shun simply grinned and continued his shower.

By the time Shun stepped out of the bathroom, a towel lazily slung around his neck and his usual calm expression back in place, the scent of coffee and eggs began to fill the Kawakami's home. Wearing a plaid shirt over a shirt and short, he made his way into the kitchen, quickly preparing breakfast with practiced ease.

On the couch, Kawakami sat with a blanket wrapped around her shoulders, eyes bleary but alert, a cold can of soda pressed to the side of her head. Her mind still echoed with the mental image from earlier.

"Headache still pounding?" Shun asked, placing a cup of herbal tea and a small bowl of miso soup in front of her.

"This should help."

Kawakami blinked. "You... made this?"

"I may be shameless, but I'm not heartless." Shun gave her a teasing grin.

"Hmph. You're definitely shameless," she muttered, trying not to look at his lips—or recall the earlier scene. But her stomach betrayed her as it let out a faint growl.

Shun chuckled. "Eat up. I made enough for both of us. Wouldn't want you fainting in the middle of class from dehydration and leftover alcohol."

"You're enjoying this too much."

"Maybe just a little."

As she took a bite, savoring the surprisingly well-balanced flavor, she gave him a side glance.

"So... where are you off to this early on a Saturday?"

"Meeting up with some friends," Shun replied nonchalantly, taking a sip of tea.

"A little socializing, maybe some bonding."

Kawakami raised a brow. "Who? You're classmate?"

He only smiled. "Something like that."

Kawakami sighed, placing her empty bowl down with a quiet clink.

"Well, thanks for the food... and the tea. It really helped."

Shun stood, brushing his hands off with a towel.

"Glad to hear. I'll leave the dishes here, Miss Kawakami."

"Don't push your luck."

He chuckled again, already heading toward the door.

"Wouldn't dream of it."

As he began to leave, Kawakami stared at the empty dishes for a moment before murmuring to herself.

"...That kid is so shameless."

But the way she blushed as she sipped the last of her tea said otherwise.

After the door closed behind him, silence returned to the apartment. Kawakami sat there for a few more moments, holding the now-warm tea cup in her hands, her eyes unfocused as she stared at the steam rising.

She leaned back against the couch and exhaled a long breath.

"dammit..." she muttered aloud.

In the quiet stillness of the morning, her thoughts drifted back over the past week—his sudden arrival, their unusual living arrangement, and the way he'd integrated himself into her routine like he'd always belonged there.

At first, she'd thought it would be awkward, even frustrating, having a student—especially one with such an intense, unreadable presence—under her roof. But now...

"He's way more reliable than I expected..." she thought, fingers absently brushing the rim of her tea cup.

Whether it was waking up early to help prepare meals, keeping the apartment clean without being told, or the subtle way he always seemed to know when she was stressed or tired, Shun had this uncanny knack for slipping into the gaps of her daily life—supporting her without making it feel like she needed help.

Sure, he was a flirt. Mischievous, even shameless at times. The way he teased her earlier made her cheeks flush all over again. But there was something disarming about him. He didn't push too far. He wasn't sleazy or disrespectful. And when he wasn't teasing... he was surprisingly mature. Observant. Grounded.

"And that body..." she caught herself thinking, blinking hard and shaking her head. "Nope. Not going there. Not thinking about that again."

Kawakami rested her head against the couch cushion, staring at the ceiling.

"I don't know what I'm supposed to feel about him." she admitted to herself.

He was her student. Technically. But outside the classroom, it felt more like she was living with someone her own age—maybe even older, emotionally. There was a strange sense of safety in his presence, despite the subtle danger she sometimes felt lurking behind his eyes.

Still, one thing was clear.

"I'm... glad he's here."

She closed her eyes for a moment, listening to the faint hum of the fridge, and smiled softly.

"Troublesome brat."

But she knew, deep down, that her days had started to feel a little less lonely since he arrived.

Kawakami let out a tired sigh, stretching her arms behind her head as she sank into the couch. Her house still carried the warm scent of breakfast—Shun's cooking, as always, was perfect. Her headache had dulled thanks to his careful attention, but the ache in her chest was harder to treat.

"I really wish I met someone like him when I was younger..." she muttered, eyes lingering on the half-empty mug beside her. Then, her lips curled into a bitter smile.

"No... I wish I met him."

The memory of this morning—seeing him in the bathroom, his teasing smirk, that ridiculous physique—was still too fresh. But it wasn't just the physical part. He wasn't just some charming boy. He was dependable, sharp, mature beyond his years... and yet, playful enough to make her feel young again.

It made her heart flutter. And that terrified her.

"What if I just..." she hesitated.

"What if I tried? Took the risk. What if I stop pretending I don't want more?"

Then her mind drifted back to the night before.

She had been out drinking with a friend—an old college buddy now teaching at a different school. They'd met to vent over work, but after a couple of drinks, the conversation had taken a different turn.

"You've been looking stressed, Sadayo. You need a break. Or better yet, someone to spend time with—real time. Don't give me that look. You're still young and cute. You should go on a blind date."

"Me? Blind date? That's not—"

"Just think about it, okay? I'll send you the info. What's the worst that could happen?"

Kawakami hadn't given it much thought last night. But now? Now it felt like a lifeline. Or maybe an escape.

"Maybe I should go," she whispered, eyes fixed on the soft morning light filtering through the curtains.

"Before it's too late. Before this feeling gets worse."

Her fingers hovered over her phone. She opened her messages and found the text her friend had sent.

[ Blind date, next weekend. Guy's decent. Funny. Not a weirdo. Try it. ]

She stared at it for a while... then slowly typed out her reply.

[ Alright. I'll go. ]

She set the phone down with a quiet exhale. Maybe this would help. Maybe she could forget. Maybe someone else could fill the space she didn't want to admit was already taken.

But deep down, she already knew—

She didn't want anyone else.