I Just Wanted a Peaceful Life After Transferring, but I Fell into a Rom-Com Trap and a Hidden Battlefield No One Knows About - Chapter 12: Big Sis Appears! My Heart Was Thrown Into Chaos by an Unexpected Turn of Events...

Chapter 12: Big Sis Appears! My Heart Was Thrown Into Chaos by an Unexpected Turn of Events…

“Owww… damn it… that bastard really hit hard…”

Carrying the birthday present I bought for Umika, I walked home, occasionally pressing against my wounds.

That’s when I noticed a pharmacy just up ahead. My forehead wound had reopened from all the chaos earlier, so I decided to buy some band-aids, gauze, and antiseptic to patch myself up.

“I’m home.”

There was no one here, but I said it out of habit anyway…

Wait.

There were shoes at the entrance.

Could it be my brother?

No… those were clearly women’s shoes.

Which meant… she was here.

Frowning slightly, I set the medicine on the entryway table and slowly made my way to the living room.

When I opened the door, a girl dressed in a long, elegant dress, her hair perfectly styled like a princess, was sitting on the sofa, idly scrolling through her phone.

Yup. Just as I thought…

“Welcome back, Nagisa-chan.”

“Hey, at least give me a heads-up before coming over.”

“Ehh? But this is my house too. Why would I need to—wait, huh? You’re injured?”

“It’s nothing… just a scratch.”

Shaking my head, I plopped down onto the couch and let out a deep sigh.

The girl in front of me was none other than my older sister—Mashiro Kotone.

Or rather, that was her current name. Her real name was Misaki Kotone.

When we were little, our parents got divorced. Our mother remarried and took Kotone with her, and from then on, we lived separately. She changed her name to “Mashiro Kotone” after that.

Her outward appearance may be pure and adorable, but let me warn you—never, ever be deceived by her cute looks! Because, psychologically speaking, she’s quite an abnormal person!

Not only did she possess insane physical abilities, but she was also brutally violent. Once she got into a fight, she entered what I could only describe as a “berserk mode.”

I once saw her snap a classmate’s arm over a petty argument back in elementary school.

From that moment on, she grew addicted to the pleasure of her actions, gradually becoming more and more violent. Psychologically speaking, her current mental state could be described as nothing less than “a pervert among perverts.”

I was sure she’d never lay a hand on me, but even so… just being around her was enough to make me break out in a cold sweat.

“I see. You got into another fight?”

“Sigh… It’s not like I wanted to, but that piece of trash just—whatever. Just thinking about it pisses me off.”

Thinking back, this all started because of my thirst for revenge.

If I hadn’t followed through on that, maybe none of this would’ve happened.

Seriously… what a pain.

“Ehh? Now I’m even more curious. But if you don’t wanna talk, I won’t press.”

Kotone got up from the sofa and walked toward the kitchen.

“What about Umika-chan? She’s still not home at this hour?”

“Umika? Ah… she went to a party with her friends.”

“Ohh, I see… That’s too bad. I actually bought some potatoes, carrots, and a bunch of other stuff—I was planning to make curry for you two.”

The moment I heard curry, all my exhaustion vanished.

Kotone’s curry wasn’t just good—it was borderline divine!

I once questioned whether it was even made by human hands.

“Curry!? For real!?”

“Of course! I know how much you guys love it, so I figured I’d make some. I haven’t had much to do lately anyway.”

I could barely contain my excitement. My heart was racing to the point that I think it’s about to pop out!.

Taking a deep breath to calm myself, I nodded.

“Alright, I’m counting on you! Umika won’t be back tonight, though.”

“Oh? That so? Well, guess it’s just us then. I’ll start cooking now.”

“Awesome!”

With that, Kotone began preparing the ingredients while I sat nearby, scrolling through my phone. Occasionally, I glanced over to watch her cook.

“By the way, it’s been a while since you transferred schools. Have you gotten used to your new life?”

She asked casually while chopping potatoes.

The problem was—she was looking at me, not the cutting board.

Wait… wasn’t she going to cut herself?!

I had no idea how she pulled it off, but Kotone’s knife skills were leagues ahead of mine.

I, on the other hand, had to focus just to avoid slicing my own fingers.

“Well… I guess I’ve gotten used to it, but lately, things have been a total mess.”

I sighed, feeling drained just thinking about it.

Even though I had ways to deal with my problems, the last few days had been nothing but frustration and exhaustion.

“Ooooh? Now you’ve got me curious! Spill the beans!”

Kotone grinned as she leaned in, eyes sparkling with interest.

But her knife was way too close to her hand, and I couldn’t help but point at the cutting board.

“Hey, focus on cutting properly. You’re gonna slice your hand off.”

She just laughed, completely unfazed.

“Relax, I’m good with a knife! Now stop dodging the question—hurry up and tell me!”

With her pressuring me like that, I had no choice but to start talking.

I figured venting a little wouldn’t hurt. Maybe it’d help ease the stress building up inside me.

“Actually… I recently got to know the most famous and beautiful girls at my new school.”

“Ehh? You?”

Kotone, looking surprised, momentarily stopped chopping with the knife in her hand.

“Yeah.”

“That’s amazing! How did you meet them? If they’re the most popular beauties in school, they must be way cuter than normal girls, right?”

“Well, yeah, but… precisely because they’re famous, things ended up like this.”

I pointed at the wound on my forehead.

“Hmm… and what does that have to do with your injury? You got hurt in a fight, right? Don’t tell me you fought with them, and that’s how this happened?”

Kotone unconsciously let out a laugh.

“Pfft… Ahaha, that’s so lame~”

“Don’t laugh! Just listen till the end! It is related, but it’s not like they hit me!”

“Huh? Really? I totally thought you tried to hit on them, got rejected, and they beat you up. That would’ve been seriously pathetic.”

“I would never do that! I… ugh, it’s just a huge pain, okay!”

I sighed again, and Kotone urged me on.

“Alright, enough with the jokes. Just tell me what happened already!”

“Ugh… it’ll be a long story, but… actually, it all started last week.”

So, I told her everything that had happened. By the time I finished, her curry was done cooking.

“Pfft… So basically, you got beaten up by a bunch of losers, and to calm the rumors, you ended up forming a club with those girls? Ahaha! This is gold, man! Someone needs to make a movie out of this!”

By the time I wrapped up my story, we had almost finished eating. But Kotone couldn’t stop laughing. She was laughing so hard that bits of rice flew out of her mouth in all directions.

“Oi, quit laughing already! This is seriously pissing me off… And stop spitting food everywhere!”

“Pfft… S-Sorry… but I just can’t hold it in! Hahaha, this is comedy gold!”

What the hell is with this girl?! What’s so funny about this?! Is she just making fun of me?! This is messed up!

“Enough already! Seriously!”

I grumbled, a little irritated. Kotone finally stopped laughing.

“Alright, alright, I won’t laugh anymore.”

Even as she said that, her eyes were teary, and the corners of her mouth twitched—she was clearly still holding back her laughter.

I really don’t get it… What’s so funny about this?

“So, what are you gonna do now?”

“Do? …I mean, there’s nothing I can do at this point.”

“Well, you usually just stay home reading manga or playing games, so maybe going to a club won’t be so bad.”

“It’s not like I want to go! The whole thing is completely meaningless to me.”

I muttered, looking down, feeling drained.

Kotone completely ignored my gloomy mood and instead smiled happily.

“Geez, Nagisa-chan, your reaction is so boring! It’s just a club, not a warzone!”

“Easy for you to say! You’re not the one dealing with it!”

“Yeah, yeah, don’t be so negative!”

Kotone patted me lightly on the shoulder as if this were nothing more than a minor issue.

“Well, this is the situation now, so you just gotta deal with it, right?”

“Haaah… This is so damn annoying.”

“Okay, okay, cheer up already! It’s getting late, so I need to go shopping for mom. Clean up the rest yourself, okay?”

With that, Kotone quickly left the kitchen, heading to the living room to grab her bag.

“Oi, you’re just leaving like this?”

“Well, it’s your fault for coming home late.”

“That’s not what I meant! I’m saying you’re leaving me to do the dishes?!”

“Ohh, right! Yeah, I mean, this is your house, after all! Alright, I’m off~”

“Oi! Hey, wait a sec!”

BAM!

The front door slammed shut.

What the hell is with her?! That’s way too unfair! This is her house too, damn it! She even calls it her own home!

Sure, her cooking is great, but she always leaves the kitchen in a mess, and I’m the one stuck cleaning up after her…

Why do I have such a bad luck…