Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 32-33

Chapter 32: Darkness Spreading in the Eyes

“So, big brother, when are you going to dump her?”

She’s still asking me this question.

“I’m not dumping her, and first of all, Kirino-san is my girlfriend.”

“You don’t need to lie to me. She’s probably threatening you, right? You promised it was just a one-time thing, but then she suddenly started blackmailing you.”

That kind of plot is my type, but Kirino-san definitely doesn’t fit the role of a fling!

It’s as unfit as a woman with an overly cute voice playing a yandere dominatrix role!

“I’m telling you, Kirino-san and I are in a wholesome boyfriend-girlfriend relationship.”

“Big brother, can you stop joking around already?”

Ayuka’s voice gets slightly lower.

My gut warns me not to anger her further, but I can’t let her believe the false rumor that Kirino-san is just a fling.

“No, this isn’t a joke. Kirino-san and I are mutually in love and dating.”

This time, I say it while looking straight into Ayuka’s eyes.

The moment I say that, the “darkness” in Ayuka’s eyes spreads.

“…Big brother, when you say mutually in love, it’s not some kind of metaphor, is it?”

“Yeah, it’s exactly what it means.”

It’s a bit embarrassing…

“Phew—”

The moment I hear Ayuka take a deep breath.

“!?”

A shock runs through the table.

“…”

Fuzuha and I tremble in shock.

I never expected Ayuka to suddenly slam the table.

Unlike the sharp sound of a streamer’s outburst, a dull thud echoes.

“You have a girlfriend!? No way, that’s a lie!”

She mutters something while slamming the table over and over.

Naturally, slamming the table repeatedly causes pain, and blood from Ayuka’s fist starts staining the spot she hits.

“Hey, Ayuka, stop it!”

Seeing this, Fuzuha hurriedly tries to hold Ayuka’s fist.

But Fuzuha’s weak strength can’t stop Ayuka’s fist.

“Kyaa!”

Ayuka tries to slam the table, including Fuzuha’s hand, which is holding her fist.

“Ugh… ah!?”

My hand takes the hit just in time to protect them.

As I touch Fuzuha’s hand, which is holding Ayuka’s fist, Fuzuha reflexively pulls back, and as a result, my hand gets slammed into the table.

“Ouch!”

It hurts. It just plain hurts.

It hurts twice as much as receiving a volleyball serve.

I mean, blood is literally flowing from my palm.

“Big brother!? You’re bleeding…”

Fuzuha hurriedly brings a first-aid kit.

Ayuka watches the whole scene.

“…”

But she doesn’t seem particularly upset and just looks at me with the same darkness spreading in her eyes.

“Big brother, here, bandages.”

I take the bandages from Fuzuha and wrap them around my non-dominant hand.

Since I’m not used to it, the bandages don’t look like something a patient would wear.

“Phew, phew.”

I regulate my breathing while looking at my bandaged hand.

The bandages already have some blood seeping through.

“…Big brother.”

Ayuka’s voice drops another octave.

“Next time, it won’t end like this.”

Saying only that, she resumes eating as if nothing happened.

“The fork… can you use it…?”

“Sort of.”

With trembling hands, I grab the fork and slurp the Napolitan.

How can Ayuka calmly resume eating next to me?

I’m not exactly angry, but the force of Ayuka’s fist slamming the table is impressive, and it feels like it’s opening a new door.

“…Big brother, after you finish eating, I want you to teach me again.”

“…No way.”

—

Chapter 33: Persuading the Shut-In

“Phew. I’m pretty much perfect now.”

It’s the night before the test.

I think I’ve perfectly memorized the material for all subjects, not just tomorrow’s.

“…Is she really going to skip the test like this?”

I’m talking about Rinka.

As far as I’ve seen, Rinka hasn’t left her room once since then and hasn’t gone to school either.

“Even if it’s just the first semester of first year, getting zero in all subjects is bad…”

Rinka is probably the type to aim for a recommendation when she’s a third-year.

She ranked high in the midterms, and her kendo grades are good too.

It’s a pity if all that gets ruined just because she choked me…

At this hour, I figure Ayuka and Fuzuha are asleep, so I quietly step into the hallway.

Then, I head straight to Rinka’s room.

“…”

I can’t hear a single sound from outside her room.

But if I turn back now, it’ll be the same as always.

As her brother, I have to take action.

With that resolve, I boldly grab the doorknob.

And then…

“It’s open…?”

The door isn’t locked, and I step inside.

“…”

The room’s layout is the same as mine, like a slightly cramped business hotel room.

But inside, there’s a bed, kendo trophies she’s won displayed, and a study desk.

At the desk, Rinka is writing something.

No, that’s schoolwork.

“…!?”

Rinka suddenly notices me and turns around.

“G-Get out!”

Her shout is weaker than usual.

“…Rinka.”

“I said get out…!”

This time, she throws something at me.

“Whoa, that’s dangerous!?”

I dodge it just in time and get closer to Rinka.

“Don’t come near…!”

Rinka throws something else at me.

Her throwing strength hasn’t weakened at all.

If it hit me directly, I’d probably pass out.

“Stop… don’t touch me!”

“Calm down, Rinka!”

I finally manage to grab Rinka’s shoulders.

But the difference in strength between Rinka and me is unfairly huge, and she easily shakes me off with her resistance.

“Whoa… ugh!?”

As expected, Rinka shakes me off hard, and I’m thrown onto the bed.

“This…!”

For some reason, Rinka climbs onto the bed and pins me down from above.

Ironically, this is exactly like a situation I used in middle school during nighttime activities.

…If I got hard right now, it’d ruin the mood.

“Why… why did you come to my room!?”

Rinka is angry but looks somewhat sad.

“I… strangled you for such a selfish reason.”

Tears start welling up in Rinka’s eyes.

“And without even apologizing… I just chose to run away.”

Her voice gets weaker and weaker.

“I… I feel so pathetic… and I can’t stand that you saw me this weak…”

Rinka’s tears fall onto my cheek.

Rinka… is crying.

“…Rinka.”

Even while pinned down, I quietly call her name.

From here, I can only recite the kind of lines a generic fanfiction protagonist uses to charm a heroine.

“I’m not mad that you strangled me. I was just worried about you.”

It’s true—I’ve never once felt angry about Rinka strangling me.

I just got excited by myself, turning it into a masochistic scenario where a strong little sister overpowers her brother.

“I was worried, but I didn’t try to check on you. I was just scared. Scared you might reject me.”

This is undeniably my true feelings.

If I had ignored Ayuka’s words and checked on Rinka earlier…

Getting strangled again or even abused would’ve been totally fine.

But the one thing I wanted to avoid was her growing cold and completely rejecting me after that incident.

“I’m the one who’s sorry. As your brother, I should’ve been more concerned about you.”

“…”

Rinka’s eyes widened.

I didn’t think I could say something so brotherly.

…Does this mean I’ve graduated from being a wimp…?