Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 52-53

Chapter 52: The Dinner Table (Everyone Joins In)

Since then, Kirino and I were hooked on gaming in my room until dinner was ready.

“…It’s already this late? Kirino, dinner’s probably ready, so let’s go downstairs.”

“Dinner, huh… I kinda wanted to eat alone with you, Kiyoto-kun.”

Yeah, I feel the same.

Forcing us to eat with the whole family is probably Rinka’s strategy.

I head downstairs with Kirino.

When we enter the living room, the table is set for five people.

The menu is the usual, except the fish is replaced with meat.

What shocks me more is that there are five servings.

Since Rinka started treating Ayuka like an outsider, she never made a portion for her…

I call out to Rinka, who’s already seated.

“Rinka, where’s Fuzuha?”

“I sent Fuzuha to get Ayuka.”

Rinka sent Fuzuha to fetch Ayuka!?

That’s as unlikely as me not edging even once during a solo night session to prolong the pleasure.

“Here, Ayuka-nee, come in.”

Following Fuzuha into the living room, Ayuka notices Kirino and glares with… not just hostility, but murderous intent.

“Why are you here?”

“Thanks for always helping at cram school, Ayuka-chan.”

Despite the deadly vibe, Kirino responds with a smile.

“I told you not to call me ‘chan.’ Hey, big brother, what’s going on?”

“Well—”

“I’m staying over at Kiyoto-kun’s house today.”

Kirino answers before I can.

“…And whose idea was that? Yours or this fling of my brother’s?”

“I asked Kiyoto-kun. By the way, what’s a fling?”

Kirino’s smile, which she kept up until now, vanishes completely.

“Huh? Exactly what it means. You’re just a fling to him, but you think you’re his girlfriend, don’t you? Just a pathetic wannabe.”

“Hey, that’s not true, Ayu—”

“Shut up, big brother!!! You’re probably just scared she’ll spill about your physical relationship unless you pretend to be her boyfriend, right?”

Ayuka’s extra talkative today.

“Hey, Rinka, are you really raising your sisters properly?”

“Calm down. Ayuka, don’t use such dirty words toward an important guest.”

“Guest? Her? And why are you talking to me like we’re close when I’m an outsider to you?”

“Act like an adult for once. We can’t keep having these childish fights in front of a guest.”

“Childish? Weren’t you the one being the most stubborn?”

Oof, that’s a solid point.

I expected Ayuka to keep up her rapid-fire talk, but she goes quiet and sits down.

“Come on, Kiyoto, Kirino, take a seat.”

Now, where should I sit?

The only empty spots are the two seats next to Rinka.

Should I sit in the middle?

“No, it’s fine, Kiyoto-kun. I’ll take the middle.”

Before I can sit, Kirino claims the middle seat.

“Sorry, Kirino, but you seem to lack some common sense.”

“What’s that supposed to mean, Rinka?”

Is Rinka about to start another argument with Kirino?

“When it’s two girls and one guy, the guy usually sits in the middle.”

Wait, there’s a rule like that!? It’s like a reward!

It’s exactly like that kanji “嫐” from those M-themed stories, where I still don’t know the right reading.

“Hm, I think that’s just a rule you made up.”

Made-up rule?

That’s a new phrase to me.

“You said I’m an important guest, right, Rinka? Then shouldn’t the guest sit in the middle?”

“We can’t make our guest feel cramped. So, please, take the end.”

“Look, Rinka, I don’t want to say this, but isn’t that just an excuse because you want to sit next to your precious Kiyoto-kun?”

“I do want to sit next to Kiyoto. That’s a fact.”

“…Oh, you admit it.”

“Admit what? Is it weird to want to sit next to my dear Kiyoto?”

“…Dear, huh.”

Hold on, hold on!

This is starting to feel like it could turn into a police matter!

Fuzuha’s been glaring at me, begging me to do something.

Guess I have to step up again.

“K-Kirino, it’s not a big deal. I can sit in the middle and still be next to you.”

“…”

Kirino, expressionless, shifts her gaze from Rinka to me.

It’s like a creepy doll from a horror movie moving on its own.

But her blank face slowly turns into a cute, troubled one.

“If you say so, Kiyoto-kun…”

“Then it’s settled. Kiyoto, sit.”

With that decided, I sit between Rinka and Kirino.

“““““Let’s eat”””””

All five of us clasp our hands, and the meal begins.

I thought I could finally dig in, but—

“Hey, big sister Rinka.”

“It’s been a while since you called me that.”

Ayuka smirks nastily at Rinka.

…I’ve got a really bad feeling about this…

“You called big brother ‘dear’ earlier, didn’t you?”

“Yes, I can’t help but adore Kiyoto.”

The stare from beside me is scary, but Ayuka’s next words make me even more nervous.

“Well, sorry about that. I already stole a kiss from your dear big brother.”

—

Chapter 53: The Cost of Dropping a Bombshell

““…What?””

Rinka and Kirino’s voices overlap.

“How does it feel? Your precious big brother’s first kiss was stolen by the sister you treated like an outsider. What’s that like?”

Ayuka smirks, taunting Rinka with a huge grin.

“Hey, what’s that supposed to mean, Ayuka-chan? You stole Kiyoto-kun’s lips before me, his girlfriend?”

“That’s what I’m saying. And one correction: you’re not his girlfriend, you’re his fling. Don’t get that wrong.”

“…Kiyoto-kun. Is what this little… Ayuka-chan saying true?”

“Uh, well—”

…What do I do?

If I tell the truth, this might turn into a full-on fight. If I lie, Ayuka might completely lose it.

Okay, I’ll secure an escape route just in case.

“Kiyoto-kun, don’t run away. Answer me properly.”

I try to sneak toward the door, but Kirino grabs my arm and stops me.

“Ow…! K-Kirino, could you loosen your grip a bit?”

“Sorry, Kiyoto-kun. If you don’t tell the truth, I might grip even harder.”

“Y-Yes, last night Ayuka kissed me in a dark alley where no one could see!!”

I blurt it out from the pain.

“Hm. So what Ayuka-chan said was true.”

The pain made me confess.

“Still, you’re in a physical relationship and haven’t even kissed yet? That’s less than a fling, isn’t it?”

“…Maybe you should zip it.”

As Kirino lets go of my arm, she moves behind Ayuka and chokes her out.

…Her reflexes are insane.

Not the time to say that.

“K-Kirino!? What—”

“Let go of Ayuka-nee!!!”

Before I can react, Fuzuha grabs Kirino’s arm, desperately trying to pull her off.

But Kirino’s arm doesn’t budge.

“Kiyoto-kun, Fuzuha-chan, no need to panic. I’m just zipping Ayuka-chan’s mouth shut.”

Her cute way of saying it makes it scarier.

But Ayuka, despite being choked and turning red from lack of air, doesn’t look in pain.

Her evil smirk doesn’t even falter.

“You’ve got… as much brute strength as Rinka-nee… Heh, a fling-less gorilla girl… you’re beyond saving.”

With that, Ayuka closes her eyes and slumps, like she’s passed out.

…What was that clean fainting?

Shouldn’t she be foaming at the mouth or something?

Is she really out?

Kirino gently lays the unconscious Ayuka on the floor.

“Now that Ayuka-chan’s finally quiet… Kiyoto-kun, your turn.”

She turns back to me.

Her face, usually called angelic by everyone, is gone. It’s just a cold expression and icy eyes.

…Am I about to die?

I look to my dear sisters for help.

Fuzuha’s staring at the unconscious Ayuka, and Rinka, who’s usually reliable, is frozen in the same pose from when Ayuka dropped the bombshell.

Like she’s turned to stone.

“Come on, Kiyoto-kun, sit.”

“…Yes.”

I don’t resist and sit across from her, like it’s a two-person meeting.

“So, tell me what happened last night.”

Am I being interrogated now?

Kirino’s face looks like a judge who’s already decided on a death sentence.

“L-Last night—”

“…Can you wait a second?”

Finally, Rinka, who’s been frozen, speaks up.

Oh, is she going to save me?

“What’s up, Rinka-chan? You’re not trying to get in my way, are you?”

Every word from Kirino drips with menace.

Come on, Rinka, stand up to her!

“No, if it’s about last night, I have some concerns too. Let me join Kiyoto’s interrogation.”

“If that’s the case, fine.”

…Yeah, I kinda saw this coming.