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

Chapter 123: Weird Energy Distribution in the Tug-of-War

“Next is tug-of-war, huh.”

After the three-legged race came tug-of-war.

This one’s tournament style, so if we keep winning it’s gonna be a real pain.

But if we lose in the first round, Kirino’s punishment will be waiting anyway, so with Kirino here we probably won’t lose the first match.

“Hey Kiyoto, do some kinda foul play, man.”

There it is.

The guy who doesn’t have the guts to actually do it but starts talking like he does.

“I’m not doing that, and what even counts as a foul in tug-of-war? Cutting the rope?”

“Oh, if that’s the case you’re fine since your girlfriend’s here. With that super strength she could snap the rope without anyone noticing and get us disqualified.”

“What was that? Kouta?”

Kirino must’ve reacted to the word “super strength,” because she peeked over from up front where she’d been talking.

“I heard something about super strength… what does that mean?”

“N-no, super strength means… K-Kiyoto was praising you, calling you super strong.”

I thought he was just throwing me under the bus, but Kouta actually followed up by saying it wasn’t an insult.

Pro ass-kisser right there.

If it was me, I’d go full dogeza and lick her feet for extra points.

“Oh really~ So Kiyoto said that about me. Then maybe I should pull hard enough to actually break the rope~”

If you do that, we’re obviously gonna lose, you know?

An announcement called all classes to the field, so we formed the marching line again and walked over.

I’m pretty sure our first opponent was that super forgettable third-year Class F.

Even though they’re barely noticeable, they’ve got the lowest average grades out of all six classes.

But whatever, don’t worry about it.

I got put in a class like that back in first year too.

Yeah… that was pretty much hell.

See, on the first day of the entrance ceremony you’re supposed to introduce yourself to the person next to you and try to get along, right?

I was pretty bad at communicating, but I worked up the courage to talk to the guy beside me.

He gave me this super annoyed look.

If it had been a cute girl I might’ve thought “tsundere?” and kept trying, but the guy was a skinny, pale, glasses-wearing otaku, so I instantly lost all motivation to say anything else.

After that I got a bit distrustful of people and spent every lunch break hiding in the toilet. Classic “that” lifestyle.

But when I really think about it, everyone else in the class was the same way, so hiding in the toilet probably didn’t even mean anything.

By the way, because I stayed in the toilet the whole lunch break for several days, my uniform ended up smelling like the bathroom, and Rinka once thought I was being bullied and almost stormed into the school.

“Hey Kiyoto, what are you spacing out for?”

“Hm? Oh, sorry.”

When I snapped out of the flashback, the super gloomy army (not like we can talk) from Class F was already lined up right in front of us.

They were standing in height order like normal.

“Hurry up and get to the back. Your beloved super str— I mean angelic girlfriend is waiting.”

This guy’s playing with fire.

If he says it one more time, I won’t be able to cover for him.

Wait, yeah, I was supposed to be at the very back.

I’m paired with Kirino.

“Here, Kiyoto, you hold the front part.”

Even though we’re paired, we don’t hold the exact same spot. We decide who takes the front and who takes the back.

The second I grabbed the rope, I could feel from the shaking how nervous everyone was.

“Hey Kiyoto, just between us… of course I want you to pull with all your strength, but don’t put in too much, okay?”

“Huh? Why?”

“’Cause those Class F kids look like they’d fall over if I pulled even a little hard.”

“……”

There she is, black-hearted Kirino.

Nice, nice. I like that attitude of looking down on everyone while observing them//

You can look down on me too if you want.

And if you get stressed, feel free to say it out loud.

It’ll be nutrition for me, so it’s win-win for both of us.

Tug-of-war started with that same “pop” sound effect that plays when I turn into a girl, and all classes pulled at once.

“Ready…”

The moment the pop went off, the rope got yanked hard.

Wait, what!? Aren’t you supposed to do a countdown or shout something before starting!?

I wasn’t the only one thinking that—almost everyone in our class got pulled forward.

They’re playing dirty, huh.

And right then—

“Hmm, that feels a bit unfair~”

A voice that made my back tingle like crazy echoed from behind.

“Then maybe I’ll put in a little strength too.”

The second Kirino said that—

“Whoa!?”

My body got yanked backward hard and I almost fell, but I planted my feet and held on.

I was the only one who managed it. Almost everyone else in our class, and even most of Class F, tripped from the sudden pull.

And the red-taped middle of the rope was way over on our side.

Sorry for saying your heart got stolen by your little sisters before, Kirino.

I’ve realized all over again that I can never escape from you.

So please forgive me by squeezing my dick as hard as you want.

—

Chapter 124: The True Strength of a Cool Girl

“Third-year Class E!”

The referee raised the red flag toward our class again.

That means we’re the third-year representatives.

“Now we get to go to the finals! Everyone, you did great.”

Kirino gave us some nice words after we’d just beaten Class B.

Of course it feels good to be praised, but honestly everyone’s thinking at least a little that we only made it this far because of Kirino alone, so it’s hard to feel genuinely happy.

Not a single person was sweating, no one’s palms were bleeding from gripping the rope too hard, and nobody’s jersey was covered in dirt from falling—stuff you’d see in any other class. Our whole class still looked exactly the same as before the match even started.

And Kirino, the only real MVP of Class E, didn’t look tired at all either.

“Okay, next is just watching. Everyone, use this time to recover your stamina.”

Since one class from each year made it through, the numbers didn’t match up for the finals.

So the first- and second-years would fight in the semifinals, while the third-year class gets a free pass straight to the finals.

It’s kinda unfair, but since third-years are the oldest, no one ever complained about it every year.

This year though, apparently the first- and second-years protested that only the third-years shouldn’t have to do semifinals.

And the one who shut them up in a second was the Kirino standing right here.

“…So first-year Class A won after all.”

When I heard Kirino’s quiet mutter and looked toward the center of the field, first-year Class A and second-year Class C were facing each other.

Rinka was up at the very front row, even though she’s tall—the complete opposite of Kirino.

“Heh~”

Kirino watched with real interest.

…Everyone was way too focused on how Kirino looked to actually rest.

Then the starting pop rang out, and both classes yanked the rope at the same time.

Second-year Class C was shouting some kind of chant while pulling, but nothing could be heard from first-year Class A.

…That’s a little surprising.

They’d formed a circle and hyped themselves up before the match, so I figured they’d be yelling really loud.

Maybe the power of chanting really is huge, because the rope kept getting pulled toward Class C’s side.

Even while their bodies were getting pushed forward, Class A didn’t change their expressions at all.

Especially Rinka at the very front—she stayed so calm it was like she was turned to stone.

And right when the middle of the rope was about to cross completely into Class C’s territory—

“！？”

The rope stopped dead.

Class C students kept desperately pulling, but it didn’t move an inch, like time itself had frozen.

The reason was obvious if you looked at Rinka’s arm.

She was just gripping the rope really hard, that’s all.

Earlier when they were being pushed, her hand holding the rope had been shaking like I do right before I cum from jerking off, but now it wasn’t moving at all. She was using her whole body weight to completely stop the rope.

The spectator seats erupted in noise at the sight.

Right on cue, Rinka took one step backward.

Everyone in her class stepped back in perfect sync with her.

“””””””””””””…！？””””””””””””

That alone made every face in Class C change color, and the rope shot back toward Class A’s side all at once.

Once they got that rhythm down, there was nothing Class C could do.

From there, step by step, slowly but surely, the rope kept getting pulled toward Class A.

Class C tried to fight back, but it was useless. In the end they couldn’t drag the rope back to their side even once, and the match was over.

“First-year Class A!”

The referee raised the red flag toward Class A.

After winning, Class A suddenly exploded with excitement, like all that calmness earlier had been a lie.

Rinka, though, stayed out of it. She just stood there with her arms crossed, quietly watching her classmates.

…Way too cool//

From the very start until after the win, Rinka never changed her expression once, and even after the match ended she was showing respect to the opponents.

That’s a real cool-type girl for you.

That’s a kendo girl!

That’s my actual little sister who exists just to corrupt me!

Looks like tonight’s fap material is already decided: getting pinned down from behind by that cool little sister and forcibly turned into a girl.

The “pop!” sound effect is still ringing nicely in my ears too.

“Aww~ Kiyoto? Why are you frozen there staring so hard at Rinka-chan~?”

Whoops, I got completely lost watching Rinka and now the muscle-brain yandere showed up from the side!

“Did you just think something really rude about me?”

“No, not at all.”

Close, close.

My brain got totally poisoned by Rinka and almost automatically came up with words that would insult Kirino.

“Next we’ll be facing Rinka-chan’s class, huh~ My arms are itching for this~”