Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 16-17

Chapter 16: Exposure

“Hey, little sister. I want to walk to school with Kiyoto-kun, just the two of us. Can you understand my feelings?”

“You have no right to stop me and my brother from walking to school together.”

…My thinking was completely naive.

I thought it would be fine to let them meet after seeing Rinka’s morning gap-moe charm…

“Little sister, this might sound a bit harsh, but isn’t it about time you stopped clinging to your brother?”

“…What do you mean?”

Rinka’s sharp retort is proof she’s pretty pissed off.

“You’re a first-year in high school, right? At your age, walking to school with your two-years-older brother is a bit embarrassing, don’t you think?”

That’s not just a bit harsh, Kirino-san, that’s really harsh.

“I don’t care how it looks to others.”

“That’s just you pretending to be tough, right? I know your type. You care about appearances, don’t you? Always preaching to Kiyoto-kun about ‘as a Nuregami’ or whatever, right?”

Bullseye.

“…Wasting more time arguing with you is pointless.”

“That’s my line. Can you stop ruining my time with my boyfriend?”

“Boyfriend…?”

She finally said it…

“Yeah, that’s right. We’re dating. Right?”

Kirino-san puts pressure on me to agree.

“Yeah. I’m kind of dating Kirino-san.”

Well, it was bound to come out eventually, and I didn’t think it was a problem if Kirino-san spilled the beans, but…

“……”

Is it just me, or is Rinka making a face I’ve never seen before?

It’s not like her expression is blank—on the contrary, her emotions are becoming more and more obvious.

“So, can you let me have this one…?”

Ignoring her reaction, Kirino-san presses even harder.

“…!”

Oh, crap.

This is the pattern where Rinka snaps.

“Hey, we’re gonna be late for school! Come on, Kirino-san, Rinka! Let’s head to school!”

“Eh!? Kiyoto-kun!?”

“What, Kiyoto!?”

My instincts warned me not to let this argument drag on, so I grabbed both their hands and forced them toward school.

At first, they resisted a bit, but after running for a while, they either gave up or started keeping up with me at a speed that almost overtook me.

By the way, aren’t you two a bit too strong when you resist…?

“Hey, that guy’s got another girl with him besides Kirino-san today!”

“What!? That jerk’s two-timing!?”

“That girl’s super hot, isn’t she? Probably more popular with girls than we are.”

“Wasn’t she in Class 1-A? Her name was…”

While overhearing the gossip of guys destined to be lifelong bachelors, I just prayed that no rumors would spread about me two-timing with my girlfriend and my actual sister.

“Haa, haa, haa…”

I somehow managed to make it to the school entrance.

Sweating and hands on my knees, I was the complete opposite of the two of them, who stood upright without a drop of sweat in sight.

“…Sorry to interrupt while you’re tired, but we’re not done talking, Kiyoto.”

Rinka said this in a voice that chilled me to the bone.

“Can we put that talk on hold? Homeroom’s about to start, and your classroom’s in Building 3, right?”

First-years and third-years are in different buildings.

Ignoring Kirino-san’s roundabout way of saying “get lost,” Rinka just stared at me intensely.

Honestly, it’s scarier than any horror movie out there…

“…After classes today, come to the main gate immediately.”

With that, Rinka disappeared into Building 3.

“That little sister of yours is scary. Do you always have to deal with her, Kiyoto-kun?”

“Well, yeah.”

If anything, I’m the one being taken care of.

“Hey, why don’t we go home through the back gate today?”

“Huh?”

“I mean, your sister’s in a really bad mood, right? If you go home with her like that, who knows what she’ll do to you. If you just avoid the main gate to begin with, it’ll be fine.”

Even so, I’ll still have to face her when I get home…

“And if she grills you at home, you can just say I forced you to leave through the back gate. That way, she’ll direct her anger at me.”

…True, the scenario of Kirino-san dragging me out through the back gate feels realistic, and it could make for some useful material for my solo nighttime fantasies.

But pinning everything on Kirino-san feels kind of wrong.

“Nah, it’s fine. As Rinka’s brother, I can’t just rely on you, Kirino-san. I’ll go to the main gate alone and make up with Rinka.”

“…I see.”

…Huh?

I thought Kirino-san would be impressed with me, but the vibe is totally off.

Her smile feels creepier than usual.

“Oh, Kirino-san, we need to get to class!”

“……”

Scary!?

She’s like the smiling nurse chasing you in a late-night hospital ghost drama!

“C-Come on, let’s go. Let’s go!”

Just like when we arrived, I grabbed Kirino-san’s hand and headed to class.

…Was it just my imagination, or was Kirino-san’s hand unnaturally cold?

—

Chapter 17: Candy and Whip

“Can I just escape?”

I mumbled to myself, almost pleading, while changing shoes at the school entrance.

I mean, I can already see Rinka standing at the main gate with her arms crossed.

The sports field separates the entrance from the gate, but even from here, her presence is overwhelming.

If I’d known it would come to this, I wouldn’t have boasted to Kirino-san this morning about going to the main gate alone to make up with Rinka.

I wouldn’t have gone as far as escaping through the back gate with her, but at least we could’ve gone to the main gate together and walked home as a trio… No, that would just restart this morning’s mess.

Today, Kirino-san had to leave early for a sudden tutoring session.

“……”

Oh, crap.

I think she just looked at me and our eyes met…

I cautiously peeked out.

“……”

She’s totally staring right at me!

I gave up, raised both hands, and surrendered.

“…You’re awfully late.”

“Well, today’s homeroom dragged on a bit.”

That’s a lie. It didn’t drag on at all.

In fact, our homeroom teacher was absent, and the substitute teacher ended it earlier than usual.

“Come on, let’s go home.”

Rinka turned and started walking.

I thought I should walk beside her, but today I didn’t have the courage, so I followed a step behind.

“That Kirino-san, was it? You’re not going home with her?”

I didn’t expect Rinka to bring up Kirino-san…

“She’s got tutoring today, so we can’t go home together…”

“…I see.”

The conversation stopped there.

I thought an awkward silence would follow, but…

“You and that Kirino-san are dating… Is that true?”

She’s asking that now?

Isn’t that the kind of question you save for when we’re almost home?

“Uh, it’s true…”

“……”

If you’re going to go silent, at least do it before asking the question.

“It seems I gave you the wrong idea.”

“The wrong idea?”

Is Rinka saying she’s actually a guy like the rumors suggest?

“You thought I was harsh with you because I hated you, didn’t you?”

…Huh?

“You assumed I deeply despised you and fell into despair.”

…Huh?

“And that’s why you did something foolish like dating that girl, right?”

Huh!?

This feels all kinds of wrong…

“But I was strict with you because of the whip of love.”

There it is. A term for masochists.

“I disciplined you strictly because I care about you.”

Uh, Rinka? Your character’s falling apart here.

“So, it’s my fault you did something foolish like dating that girl. I won’t tell you to break up with her right now.”

Oh, you’re letting that slide?

“Instead… I’ll give you some candy to make you feel my love so much you’ll want to dump that girl.”

Candy.

Rinka’s candy…

No, no, what am I expecting?

“Here.”

This time, Rinka held out her hand.

So, we’re walking home holding hands…?

“…!?”

The moment I took her hand, she pulled me right in front of her.

“Looking at you like this, your body’s a bit small.”

Like a gentleman escorting a lady, she put her hand on my shoulder, almost enveloping me.

“R-Rinka, this makes it hard to walk.”

“You don’t need to move your feet. When I move, your body will follow.”

Rinka gently held my shoulder and started walking.

“Kiyoto, aren’t you hot?”

“No, not at all.”

It’s July, and I’m wearing a uniform, so I do feel the heat.

But that heat’s coming from my own body.

…I think I’m already falling for her.