Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 74-75

Chapter 74: The Lady’s Useless Dog

“…Whoa… huh? I can’t hear the yandere voice?”

I woke up in Satsuna’s room again today.

The difference from yesterday was that I woke up on the bed.

“Satsuna… oh, she’s already up today too…”

Damn, I thought I’d get to see the sleeping face of the sadistic lady.

But yeah, no way the lady would give me such an opening.

“Well, I can still feel Satsuna’s fingers in my mouth from yesterday, so maybe I’ll just… huh?”

I got up to go to my room for some penis radio exercise, but the moment I moved, a bell rang loudly nearby.

“No, the sound isn’t just nearby—it’s coming from my body…”

I looked at my body.

“Huh? …What’s this!?”

Unbelievably… a black collar with silver spikes was around my neck.

It even had a bell.

I jumped up and looked at myself in the mirror.

“Wow.”

It was… it was exactly the look I dreamed of…

A dog with a black collar.

That was exactly what I looked like now.

“This… I need to take off my clothes too…//”

I was wearing pajamas, so it wasn’t perfect for being called a dog.

N-no, it’s not like I’m acting on my own to become a dog…!!

Look, since I already have a collar, the lady must want me to fully become a dog, and “dogs don’t need clothes, right?” is totally something the lady would say.

I quickly took off my shirt.

“Should I… take off the bottom too?”

Normally, I’d laugh at how obvious that is, but right now, there was a pretty big tent in my lower half.

A dog wouldn’t have something like this, right?

If the lady saw me like this,

“Oh, what’s this? Dogs don’t have things like that, do they? I’ll have to cut it off,” she’d probably say.

Even I couldn’t handle being separated from my little buddy.

…No, now that I think about it, that might not be so bad?

I mean, the lady herself would be castrating me, right?

That would open a whole new door for me.

“Oh, Brother. You’re awake?”

At that moment, as I put my hand on my pants, Satsuna walked in.

“S-Satsuna… this is—”

“It’s fine, Brother. No need for excuses. You wanted to become my dog on your own, didn’t you?”

She hit the nail on the head, and I couldn’t say anything.

“That collar suits you perfectly, doesn’t it? I carefully chose one that would fit you.”

Yes! It suits me perfectly!

The black color is perfect for a useless dog like me.

And these silver spikes give off a nice S&M vibe!

“But that collar isn’t just proof that you’re my beloved useless dog—it has another important role.”

What!?

Another important role besides being a sign that I’m Satsuna’s obedient dog!?

“Even though it’s been a night, you’re still a patient, Brother. There’s still some blood on those bandages, right?”

Of course, since I haven’t changed them, yesterday’s blood is still there.

But it doesn’t hurt anymore.

“I can’t help but feel uneasy about letting a patient like you go outside.”

Oh…

Could this be…?

“So, for a while, I’ve decided you won’t leave the house, and that collar is to make sure you don’t escape.”

Confinement arc has arrived!!!!!!!

It’s here!!! The lady + confinement!!!!

“That bell rings loudly with even the slightest movement, so I can tell where you are. And that black collar is meant to embarrass you if you ever escape outside… but it seems to have the opposite effect on you.”

YES!

This alone can’t stop me!

You’d need to put a leash on me too.

“Now, Brother, shall we go downstairs? Don’t worry, I won’t make a patient eat off the floor.”

So, if I wasn’t a patient, I’d have to eat off the floor like a dog, without using my hands…

Yeah, that’s totally welcome!

Eating at Satsuna’s feet with just my mouth, and if I’m lucky, maybe she’d step on my penis with her foot…

—

Chapter 75: The Maid’s Limit of Patience

For some reason, I felt strong stares from everyone today.

With such intense looks, I couldn’t focus on my meal.

Fuzuha looked at me with slightly nervous eyes.

Ayuka tried hard to hold back laughter with her eyes.

Rinka stared at me with admiring eyes.

Well, it didn’t feel bad, of course…

“Rinka.”

“…”

Um, Rinka-san?

Your big sister is calling you.

“Rinka, answer me.”

“!? W-What is it, Sister?”

“This bread’s baking seems off, doesn’t it? It feels a bit burnt.”

“S-Sorry. It seems I baked it a bit too long.”

No, it didn’t taste burnt, and I thought Satsuna just wanted to nitpick.

By the way, since when did we all start eating breakfast together on a holiday?

“Oh, Rinka, what’s wrong? You’ve been staring at Brother since earlier.”

“Sister, what’s with that collar on Kiyoto?”

As expected, the collar was the cause.

Sure, when Satsuna was still at home, she often put a collar on me, but that was only in her room. This might be the first time Rinka and the others saw me wearing a collar.

“What do you think? It suits him, right? A slightly thick black collar perfect for Brother. And that bell adds a nice touch, doesn’t it?”

“Y-Yes, very…”

Rinka’s eyes were completely different now.

She had the gentle look of someone gazing at a cute small animal.

Satsuna finished her soup, and the sound of her putting down the bowl echoed.

“So… Brother is banned from going outside for a while, right?”

“No objections.”

“Of course.”

“We don’t know when that woman might attack Onii-chan again.”

So, it wasn’t just Satsuna’s idea—the sisters all discussed and decided this.

“That settles it, Brother. For a while, you’ll study diligently in my room.”

“Y-Yes…”

I planned to only write essays and skip regular studies…

But there’s no way Satsuna would let that slide.

I finished eating too, so I headed to the stairs with Satsuna.

“Sister, wait.”

Rinka stopped us.

“Sister, I’ll take care of Kiyoto’s studies. You just came back, so please take it easy.”

Wow, saying that to the lady.

What a bold maid.

“Since I just came back, I want to spend as much time as possible in a master-servant relationship… together with Brother.”

That wasn’t a slip—she said it on purpose for Rinka to hear.

“Sister, I know it’s rude, but wasn’t it because you were there yesterday that Kiyoto got a serious head injury?”

!?!?!?

“Wait a second!”

“R-Rinka-nee…”

I wasn’t the only one shocked. Ayuka and Fuzuha tried to stop Rinka, but—

“Both of you, be quiet.”

The queen’s sharp command made their attempts useless.

“Rinka, care to explain what you mean?”

“I heard that yesterday at the cram school, Kiyoto was hit and knocked out by that classmate, Kirino Kinui.”

“Go on.”

“But I wasn’t told the reason. I’ve met Kirino Kinui several times. There’s no doubt she’s a shady person claiming to be Kiyoto’s girlfriend.”

You still don’t accept my relationship with Kirino-san!? Well, it’s not just Rinka.

“But I can’t believe someone so obsessed with Kiyoto would hurt him for no reason.”

Kirino-san often tried to harm my sisters.

But she never tried to harm me.

“…So, you’re saying I caused it?”

“I think you probably said something to provoke her. So, I believe it’s unwise to entrust Kiyoto to you after you put him in danger.”

…Everyone here has probably said something to provoke Kirino-san at least once…

And I don’t mind being with Satsuna.

Studying regular subjects is a hassle, but isn’t it natural for a pet to be with its master?

Or maybe Rinka wants to pull my leash?

A cool, sadistic type definitely hits my kinks.

“…Rinka, you’ve gotten quite bold, haven’t you? Shall I bring you back down to your place with my foot?”

That phrasing is totally my taste…//

“…I’m at my limit too. Sister, you’re underestimating me a bit.”

Oh, Rinka’s fully in battle mode now.

Her eyes, which were gentle before, now glared like she was facing an enemy.

“…That look, defying me like that, I don’t like it.”

Satsuna stayed calm as always, but that face was totally the lady’s face when she’s about to execute a slave.

I knew it from seeing it in doujinshi countless times.

If things continued, it was clear a disaster would happen.

It might escalate beyond just a police matter.

But I didn’t panic.

Because I knew the solution to this.