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

Chapter 87: Getting Ready for the Summer Festival

“Oh yeah, today’s the summer festival, isn’t it?”

The chaotic summer break is reaching its final stretch, and that’s usually when the summer festival happens.
It’s held every year at a pretty big shrine near our house.

“Have the four of us ever gone together?”

“No, our schedules never lined up.”

Now that she mentions it, I don’t have any memory of the four of us going to the summer festival.
Come to think of it, I don’t even remember us four ever going out to play somewhere together.

“Rinka, do you wanna go to the summer festival?”

“I’m not really interested.”

“Ayuka?”

“Too much hassle.”

“Fuzuha?”

“I think I’ll pass this year too.”

What’s with these unmotivated sisters?

“Brother?”

“I’m not going.”

Obviously I’m not going either.
Actually, the last time I went to a festival was probably back in sixth grade.

That brings back memories.
You might not believe it, but in sixth grade I was kinda part of the outgoing group.
Elementary school outgoing kids aren’t that big a deal, but just picture me as the type who hung out with friends at the park or at someone’s house.

Summer festivals were made for those sunny elementary kids. We’d mess around at the stalls, wear yukata and dance, and even play the taiko drums.

Looking back now, I’m honestly impressed that I could stand in front of people so confidently back then.
No way I could do that now.

“Then this year the whole family will go together.”

“…Huh?”
“…Ha?”
“…Eh?”
“…Hm?”

Wait, did you hear what everyone just said?
I’m pretty sure we all answered that we don’t wanna go…

“Well then, let’s get ready right away. Don’t worry, I brought yukata for everyone.”

Yu… yukata…//

I suddenly remembered that AI-generated picture I found online once: a girl in a yukata doing facesitting on a guy.

“Oh, and obviously going to the festival in yukata is an order from me, okay?”

““““……””””

When she puts it like that, none of us can say anything.

“So come to my room around evening. You can all change into your yukata there.”

After saying that, Satsuna headed off to her own room.

““““……””””

The four of us left behind just stayed quiet, but every face clearly said “Wait, we’re actually going?”

“Eh, we’re really going?”

The one who actually let it slip out loud was Ayuka.

“…Since Sister said that, we don’t really have a choice.”

“What? You’re totally wrapped around Satsuna’s finger.”

“Can’t be helped. She’s not someone you can just charge at recklessly.”

This sounds like they’re talking about a political rival or something.

“…I don’t wanna wear a yukata though.”

“Me neither. It feels kinda embarrassing at our age.”

Nah, Fuzuha looks so young that I think she’d pull it off just fine.

“You’d just look even flatter, like a cutting board.”

Hey, hey, hey.
Don’t step on that landmine right now.

“…How long are you planning to lord that stupid stuff over me? Fight me on something more important as a human being.”

“What are you talking about? For a girl, boobs are the most important weapon.”

“Kiyoto said he doesn’t care about them though.”

“Huh? Wait, Brother, is that true!?”

I didn’t say that.
I didn’t, but… I really don’t focus on boobs that much.
I mean, how are boobs supposed to tickle my masochistic side?
For me, legs are way more important than boobs.

“Well, I don’t think boobs are everything, but…”

“Stop with the pretty words. Your side chick has big ones, doesn’t she?”

She means Kirino.
Well, with Kirino it’s more about her whole figure being too perfect. (Of course the big boobs are part of the appeal too.)

“…Sorry, I forgot you already broke things off with that violent girl.”

I didn’t break anything off!?
And she’s not even my side chick.

“…Ayuka, don’t say that girl’s name in front of Kiyoto. What are you gonna do if the trauma comes back?”

Kirino’s getting treated even worse than before.

““““……””””

Why does it always get this awkward the moment someone brings up Kirino’s name?

“Anyway, like Sister said, let’s just wait in our own rooms until evening.”

Rinka’s words broke up the group, and I went back to shutting myself in my room all alone again.

—

Chapter 88: The Pathetic Dog’s Yukata

“Phew~”

I finish my penis exercises and wipe the “white sweat from my dick” off with a tissue.

“Ugh, the trash can’s already full of tissues.”

My room’s trash can is overflowing with tissues. It’s about to spill over any second.

“…Rinka’s the one who always gathers up the trash in here and throws it out, right?”

Given the cloudy yellow stuff stuck to these tissues and the smell of rotten pancakes filling the can, there’s no way Rinka hasn’t figured out what they really are.

…//

Maybe next time I’ll casually ask her what she thinks about all the tissues in my trash can.

“……This summer break sure has been long.”

It was exactly what a high schooler’s last summer break should be.
No, it was way more than that.

First there was the date with Rinka on the very first day of break.
Then I tried poking around about Ayuka’s dinner situation and pushing her to go home, only to get counterattacked with kiss torture.
Kirino’s sudden visit to my house.
Watching Rinka’s kendo tournament.
The queen’s return.
The time Kirino beat me up.
Kirino’s visit to my house again.

So many things happened for real.

By the way, my little sisters still haven’t gotten over their disgust toward Kirino for slamming me into the desk and knocking me out.
Of course their opinion of her was already super low before that, but after the conversation earlier, just saying her name is starting to feel like a taboo.

Because of that, they decided to keep me and Kirino apart for a while, so the last few days I’ve been in complete soft lockdown.

Since the night I stayed over at her place, I haven’t seen Kirino at all. We’ve only been texting.
The Kirino I know would never accept that—she’d probably storm over to my house—but I guess she feels guilty for knocking me unconscious with her own hands.

Oh, and right after that I got fitted with a new collar again. (This one doesn’t have a bell.)

Thanks to that guilt I’m somehow still living my daily life, but I have no idea when that balance is gonna break.

“…I should come up with a bunch of excuses while I still can… nah, forget it. That sounds too much like a suicide note.”

Anyway, there’s nothing I can do right now.

It’s not like some gal-game route is gonna force me to pick just one heroine or anything.

…Right? It’s not gonna happen, is it?
I feel like Rinka mentioned living together before, though.

While I was reminiscing about the past and worrying about the future,

“Ah, it’s already past five.”

I finally noticed the time had gone past five.

I’m pretty sure she told me to come to Satsuna’s room so she could put me in a yukata.

I don’t think there’s any demand for guys wearing yukata though.

I leave my room, go up the stairs, and arrive in front of Satsuna’s door.

I knock four times.

“Come in.”

Hearing the reply, I step inside.

“…So the pathetic dog Brother is last, as expected. That makes sense.”

Can’t argue with that.
I mean, I’m the pathetic dog after all.

Since I’m last, that means everyone else has already changed into their yukata and is waiting?
But Satsuna still isn’t wearing hers.

“Here’s the yukata for you, Brother.”

She pulls my yukata out from under the bed.

“……”

It’s super worn out.

What Satsuna showed me was a ragged yukata that looked like it had been used for years.
It used to have color and patterns, but now the whole thing is a dull dark gray with torn-looking lines here and there.

“How is it? It suits you perfectly, doesn’t it?”

I’m honestly happy she prepared a yukata for a pathetic dog like me, but honestly my normal clothes would be—

“Don’t worry. This is brand new.”

It really doesn’t look like it…

If this wasn’t some joke item hidden in the back of a second-hand shop, then Satsuna must have deliberately dirtied it just for me.

……//

Sorry for saying it myself, but that thought just turned me on a little.

“Come on, hurry up and try it on.”

Satsuna urged me, so I stood in front of the mirror, took off my clothes, and dropped my pants and underwear.

Right now I’m completely naked in front of Satsuna, but that’s just normal between us, so I don’t really mind.

Satsuna looks at my body with a sadistic smile, but that’s also normal.

Just the other day she stomped on my dick until I shot a huge load, so this is nothing.

Thank you so much for stepping on me back then.
Next time I’d like to lick not just your feet and toes, but places you usually can’t reach too.

I couldn’t remember the last time I wore a yukata, so I thought it’d be hard, but this ragged one was super easy—just slip your arms through the sleeves and tie the sash.

“I-I put it on.”

I turn toward Satsuna and show her how I look in the yukata.

“Yes… yes!! It’s perfect. You look even more fitting as my pet animal now.”

I’m honored.

“Now it’s my turn. Mine will take a little time, so go downstairs and wait with the other three.”

If it takes time, that means her yukata must be really fancy.
Well, she is a young lady, so that makes sense.

While looking forward to seeing the three of them in yukata, I headed down to the living room.