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

Chapter 91: Pet-Loving Master

“Here, Brother, I’ll feed you. Say ‘ahh~’”

“Ah, ahh~”

We managed to reach the cotton candy stall, and just like she promised, Satsuna bought cotton candy for everyone.
Then she started feeding her pet—me.

“Brother, why don’t you come a little closer? It must be hard to eat like that.”

“Guh, y-yeah, true.”

I get it, so stop pulling the leash so naturally.
Ah, but that’s just me pretending I want her to pull harder.

““……””

“Oh? What’s wrong, Rinka, Ayuka? Why those rebellious eyes?”

“…Nothing.”

Ayuka doesn’t want a fight with Satsuna, so the second she got called out she looked away.
But

“…Sister, aren’t you spoiling Kiyoto a bit too much?”

“Spoiling him? Me?”

“Kiyoto’s already a third-year in high school. He should be able to put food in his own mouth without you feeding him every single time.”

The way she says it makes it sound like if I was still in middle school I’d need Satsuna to feed me.

“Oh, but I heard you used to do ‘ahh~’ for Brother too at one point.”

Yes, yes, that happened!
It was right after Rinka declared she’d switch between whip and candy modes all the time!

“…I was usually strict with him, so I thought he needed some sweetness every now and then. That’s all.
But in your case, Sister, you’re always spoiling Kiyoto.”

Satsuna is sweet to me…?
Well, if you look at me as her pet, Satsuna really is an incredibly kind owner.

She even puts a collar and leash on me so I don’t get lost, lets me wear clothes, and now she’s feeding me by hand.
Plus I get proper “rewards” too.

“Because Brother is my beloved dog. What’s wrong with pampering my beloved dog?”

“…I’ve been wondering for a while, but why is Kiyoto your beloved dog? First of all, Kiyoto isn’t a dog—he’s a human, and he’s my future partner.”

Up until that last word she was saying stuff that made me really happy as her brother, but that part was definitely unnecessary.

“…Honestly, I never thought you’d be such a selfish little sister who wants what belongs to her older sister this badly.”

“That’s exactly why your premise is wrong. Kiyoto is not yours.”

Why do they always start fighting the second we’re just eating cotton candy…
Come on, Fuzuha, your turn.

“U-um, how about we all try goldfish scooping next!”

“…Sounds good.”

Ayuka went along with Fuzuha’s suggestion, but the other two

“…Goldfish scooping. Since we came all the way to the summer festival, I’d like to try it. What about you, Sister?”

“I’m all for trying something I don’t usually do.”

Phew. At least it didn’t turn into an actual fight.

Just when we were about to head to the goldfish scooping stall together,

“Oh, right. There was actually something I wanted at the festival.”

Satsuna suddenly starts walking in the opposite direction from everyone else.
…Of course while still pulling my leash.

“…Hey, doesn’t that seem suspicious?”

“Yeah, I don’t like leaving Kiyoto alone with Sister either.”

Obviously we couldn’t just go straight to goldfish scooping by ourselves, so the three of them start following us.

Even in this crazy crowd Satsuna moves without getting swept away, and the three behind us do the same.
These people have insane spatial awareness.

Anyway, Satsuna’s actual destination turned out to be

“A mask stall…?”

It was a stall selling festival masks.

Like always, the masks were expensive and not selling well, so tons of them were left over.

“Excuse me, can I have that one?”

The one Satsuna pointed at was a cute dog mask with a perfectly round face and big ears—the kind little kids love.

“Thank you very much.”

After paying and taking the mask, Satsuna looks back and forth between the mask and my face.

“Yes… it really suits you perfectly, Brother.”

…Well, the second I realized Satsuna was heading for the mask stall I kinda figured this would happen, and sure enough she puts the dog mask on me.

“…Brother, you should thank me. It seems you’re embarrassed about your classmates seeing you being walked around with a collar and leash, so I kindly hid your face so no one would recognize you.”

I see!
So this isn’t just for Satsuna’s own fun—she did it thinking of me!
Satsuna really is a master who cares about her pet!

“Well then, shall we head for the goldfish scooping again?”

She starts walking toward the goldfish stall while pulling the leash once more.

…Still, this mask has weirdly big eye holes, so I can clearly see the faces of people who are totally creeped out by how I look right now.
And I can see my sisters’ faces too.

Fuzuha is obviously avoiding looking at me.
Ayuka is giving me this look of pure contempt, and Rinka is staring with an unreadable expression.

Well… this kind of shame play isn’t bad at all, if I’m being honest.

——————–

“…Is that you, Kiyoto?”

—

Chapter 92: The Taboo Person Who Appeared Right in Front of Us

“Rinka’s too strong…”

“You’re… a body-ability gorilla.”

“Ayuka… let’s pretend I didn’t hear that just now.”

We all did goldfish scooping together, but Rinka caught way more than anyone else.
After her it was Fuzuha, then Satsuna, Ayuka, and me.

Well, me being dead last was obvious before we even started, so I’d rather not talk about that part too much.

Still… didn’t the net break way too fast?
The second I moved it a little roughly in the water it tore.

…Was my net the only one that got tampered with?

Maybe the stall guy was jealous of me?
Jealous of me, the dog-slash-sex-slave who gets to wear a collar and leash while being walked by a girl in a fancy dress!?

“By the way… Sister, isn’t the number of goldfish you caught a little low?”

Of course Rinka wants to poke at her.

“…Yes, it seems this kind of game isn’t really for me.”

“Not for you, or you just don’t have the skill?”

It feels super rare for Rinka to throw shade like this.

“Just because you got a tiny lead in a silly festival game, you’re getting all cocky. What a foolish little sister.”

“That foolish little sister is the one who beat you, Sister.”

Hey, Rinka? Maybe you should stop soon.

“Rinka, it’s fine if you’re feeling confident, but looking down on me is a bit much, don’t you think?”

“I’m not looking down on you. I just caught a glimpse of your limits.”

Aah— she’s about to snap any second…

Alright, Fuzuha, your turn!!!!!!

But the one who stopped the cold war this time wasn’t Fuzuha.

“Sorry, but… you really are Kiyoto, right?”

“Eh, ehh!? K-Kirino!?”

Kirino suddenly popped out of the crowd and jumped in.
And she’s wearing a yukata too…

“Kiyoto, how do I look in my yukata?”

“H-how…?”

Kirino cuts right between Satsuna and Rinka, steps close to me, and shows off her yukata.

The one Kirino’s wearing is a light purple all over with apple patterns. It gives off that fresh, modern yukata vibe.

“Hey, what the hell? I told you to stay away from my brother, didn’t I?”

“Can you be quiet for a second, Ayuka? I’m asking Kiyoto what he thinks of my yukata right now. So, how is it, Kiyoto?”

“W-well, it’s really you, Kirino. It suits you a lot.”

“Huh? Brother, what are you even saying? Did you forget what this girl did to you?”

Right…
Even if I’m okay with it, to my sisters Kirino is still the symbol of disgust.

“I agree. How dare you show your face in front of Kiyoto…”

Rinka gives off a killing intent I’ve never felt from her before and steps right up to Kirino.
She almost never calls someone “you” like that unless it’s really bad.

“…It’s true that what I did back then can’t be forgiven, and I’m not going to try to justify it.”

“Shut up… Your excuses have zero value.”

Rinka’s eyes are warning her that if she doesn’t leave right now, things are gonna get physical.

“That’s exactly why, ever since Kiyoto stayed over at my house, I haven’t met him in person even once, and we’ve only been texting.”

“Stayed over at your house…? What does that mean, Brother?”

Eh? She really didn’t know!?

I thought Satsuna had already told them…

It did feel weird that Rinka and Ayuka never questioned me about it…

“…Is what this woman just said true, Kiyoto?”

“U-uh, well, that is…”

“Answer clearly.”

“…Yes. The place I stayed when I ran away from home was Kirino’s house.”