Somehow I Ended up Dating the Perfect Female Classmate, but My Sister Found Out and They're Turning Into Yanderes - Chapter 20-21

Chapter 20: Candy Mode

When I got home from the tutoring center, I thought everyone else would already be at the table.

“Ayuka…”

“Ayuka-nee…”

Ayuka wasn’t in the living room.

Her food was set on the table, of course.

And, unusually, Rinka was still working in the kitchen.

“Fuzuha, what’s up with Ayuka…?”

“Well… she came home and went straight upstairs.”

Seriously…

That’s pretty bad.

Most of Ayuka’s behavior probably came from yesterday’s thing with Rinka.

The tutoring center incident had nothing to do with it… or maybe it did.

“Alright, it’s done!”

Rinka’s voice came from the kitchen, and she brought a plate to the table.

On the table was a dessert with fruit neatly placed on toasted bread.

…It’s so cute, I can’t believe Rinka made it.

“R-Rinka, is this a dessert…?”

“Of course. I’ve never made dessert before, have I? I told you, didn’t I? I’d give you lots of candy.”

“R-Rinka…”

Rinka smiled at me like a holy mother watching over a baby.

This is that classic situation.

The one where a DV girlfriend is super nice after being abusive, making the boyfriend (the listener) dependent on her.

“W-Wait, what’s going on with you two?”

Fuzuha panicked, not understanding what was happening.

Fuzuha, this is what growing up is!

“Come on, eat up so we can enjoy this dessert.”

The three of us put our hands together and started dinner.

By the way, what does Rinka think about Ayuka?

Rinka’s good at taking care of people.

She’s probably a bit worried…

“Kiyoto, tell me if it’s too much food.”

Yeah, she’s not worried at all.

She’s not even looking at Ayuka’s food on the table.

“H-Hey, Rinka-nee.”

“Hm? What?”

“Seriously, what’s up with you today? You’re being, like, super sweet to Onii-chan…”

“It’s just switching between candy and whip.”

Hey, hey.

Isn’t “candy and whip” a bit too much for a kid like Fuzuha?

“Candy and… whip?”

Fuzuha tilted her head like she was making a question mark with her body.

“What does that mean, Onii-chan?”

“…Don’t think too hard. Just think Rinka flipped or something.”

“?”

Ugh, my explanation sucked.

Wait, with Rinka like this, maybe I can use my phone during dinner without getting in trouble?

Texting Kirino-san during a meal was kind of a dream of mine.

I decided to try it and reached for my phone in my pocket—

“Kiyoto, what are you doing?”

Failed to take it out.

“Uh, I was just… grabbing my phone…”

“Phone? Is your phone more important than eating with me?”

Rinka-san? You’re going back to whip mode?

“You’re misunderstanding something. Listen, giving candy and spoiling you are completely different.”

They’re different?

“I’m just saying I’ll love you in a different way. There’s no way I’d let you text that girl during our precious meal.”

How did she know I was going to text Kirino-san!?

“If you understand, put it away.”

“…Yes.”

The phone was a no-go…

Then the TV.

“By the way, the TV’s off-limits too. I won’t allow anything to disturb our meal, no matter what it is.”

“E-Even me…?”

Fuzuha asked, a bit scared.

“What are you saying? I’d never think of my precious sister as a disturbance between me and Kiyoto. But I’ll make some distinctions.”

That sounds like it could lead to domestic violence in the future.

Tonight’s dinner was mostly my favorite foods, so it didn’t take long to finish.

“Come on, Kiyoto. Let’s eat dessert together.”

The dessert was better than the fruit-topped parfaits you get at restaurants, in my opinion.

Fuzuha was grumpy because Rinka was focusing on me, but the dessert was so good that by the time she finished, her bad mood was gone.

—

Chapter 21: Sister Flag

“Oh, a notification from Kirino-san?”

After finishing dinner, taking a bath, and returning to my room, my phone pinged with a notification.

“Kiyoto-kun, good evening. How’s your test studying going? Since you were at the tutoring center, you studied enough today, right? Want to take a break and play that game together again?”

I didn’t study at all at the tutoring center, but it’s only a week before the test, and warming up before getting serious is important, right?

My pre-test warm-up used to be exercising with my “little buddy,” but now that I have a girlfriend, I don’t need to do that.

You might think I’ll use this excuse all week, but I’m the type who gets serious when it’s time.

…Though my self-control doesn’t last more than three days.

“Alright, friend list… there.”

Kirino-san’s profile had a clear “online” light.

Wait, Kirino-san plays games during test season?

And she still keeps top grades? That’s nothing short of admirable.

It makes me feel so inferior that I hate myself.

My way of dealing with this is to find excitement in the situation.

This scenario is every masochist guy’s dream.

I’m in that situation right now.

Thinking like that eases my self-hatred a bit.

“Hey, Kiyoto-kun, can you hear me?”

When I joined Kirino-san’s room, her beautiful voice, slightly altered by voice chat, came through.

“Hey, I can hear you, Kirino-san.”

“Shall we start from where we beat that boss yesterday?”

The boss Kirino-san mentioned was a mid-game boss.

So, last night alone, Kirino-san (basically just her) got us from the early game to the mid-game.

…She’s practically superhuman.

“So, the mid-boss area?”

“Onii-chan.”

As I spoke, my room’s door opened, and Fuzuha came in.

“Hm? What’s up, Fuzuha?”

“Uh, you know how we played that tough game together the other day? So, maybe today, too…?”

I didn’t expect Fuzuha to ask me.

But I already have plans…

If she’d asked earlier, I’d have played with her.

“Sorry, I’ve got someone else today.”

“Kiyoto-kun? Is someone in your room?”

Oh, crap!

I forgot to plug my earphones into the controller.

“Huh? What was that voice?”

Of course, Fuzuha heard it and looked around.

“Voice chat…?”

“Hey, is someone there, Kiyoto-kun?”

…Why do my sisters and Kirino-san keep running into each other today…

Also, Kirino-san, your tone is getting a bit scary.

“Uh, hello? Who’s this?”

Fuzuha spoke into the controller’s mic.

“That’s my line. Who are you?”

“I-I’m Onii-chan’s sister…”

“Kiyoto-kun’s sister? So, you’re the youngest, right?

What’s your name?”

“F-Fuzuha.”

“Fuzuha-chan, huh. All the kids in Kiyoto-kun’s house have cute names.”

I’m surprised Fuzuha’s actually talking normally.

Unlike her two older sisters, she’s super shy.

I didn’t think she’d talk this casually, even with another girl.

“And… who are you?”

“I’m Kirino Kinui, Kiyoto-kun’s classmate and girlfriend.”

“Classmate… girlfriend?”

What was that pause?

“Yeah, Kiyoto-kun’s girlfriend.”

Now, how will Fuzuha react?

“Onii-chan’s… girlfriend…!”

I thought she’d zone out, but after a few seconds, Fuzuha sprang into action.

“Nn!!”

“Huh!? Wait!?”

She yanked out the game cord.

“What are you doing, Fuzuha!?”

“…S-Sorry!!”

Suddenly, as if snapping back to reality, she teared up and bowed.

I couldn’t stay mad at her like that.

“Th-The woman just said she’s your girlfriend, and my head went all crazy…”

So, emotionally unstable?

“I’m really sorry! If you were far in the game and hadn’t saved, I’ll take responsibility and play through it.”

Was that her plan all along?

No, Fuzuha wouldn’t do that.

“N-No, we hadn’t started yet, just began.”

I told her she didn’t need to apologize so much.

“I’ll apologize to Kirino-san for you.”

“Yeah… I’m really sorry for the trouble, Onii-chan.”

Fuzuha wiped her tears and left the room.

“…A second sister who switches between candy and whip, a third sister with twisted tsundere, and an emotionally unstable youngest sister.

…Did I really get transported into a doujinshi world?”