After My Girlfriend Dumped Me, I Got Reincarnated As A High School Student. That Part’s Fine—But Why Are All My Ex-Girlfriends Here Too? - Chapter 16 – My Little Sister Is So Cute It Hurts

“I see… So, in the original world, I was married.”

After the family restaurant meeting, once we all went home and finished our own things, Hii-chan suddenly barged into my room. And now, we were right in the middle of a family meeting.

For the record, as soon as I got home, Shima sent me a flood of messages—I turned off notifications when the unread count went past a hundred. Frankly, she should be grateful I didn’t just block her.

“Yeah,” I said, nodding. “You said you’ve been with the same guy since high school.”

“Hmm… it still doesn’t feel real, though.”

“Well, that’s understandable.”

In this world, Hinami was still a high school student, so of course it didn’t feel real. Technically, there were times when people could marry at sixteen with parental consent, but that was never exactly normal.

I could still remember the weird feeling I got when she told me she was married in the original world.
And now, since she was my actual little sister in this world… If that day ever came again, would it feel even stranger than before?

“Onii-chan?”

“Ah—no, I just… got something in my eye.”

“Are you okay?”

“Y-yeah, I’m fine.”

After the restaurant meeting, everyone had learned that I was reincarnated, and that this world had been created by someone.

It was a lot to take in. To them, I must have sounded insane. But they still chose to believe me—and for that, I could only feel grateful.

Still…

“Hey, Hii-chan? I’m not a chair, you know?”

Apparently, this world had existed long before I was born into it. But of course, I had no memories of that time.

Basically, the “me” who originally lived here—let’s call him Yuta A—disappeared the moment I reincarnated. Now, Yuta B—me—had taken over his place in this world.

The problem was, Yuta B didn’t inherit any of Yuta A’s memories. So anything only A knew was completely lost to me.

That’s why I’d asked Hinami to come talk—so we could fill in the blanks together.

Or at least, that was the idea.

Her reason for coming, though, was something else entirely.

“It’s just…” she mumbled, “lately, you’re always surrounded by other people. I can’t have you all to myself anymore.”

And that was how we got here—Hinami, wearing pink polka-dot pajamas, was now sitting on my lap.

The warmth of her soft body pressed against me, the faint floral scent of her shampoo and soap—fresh from her bath—all of it was slowly draining my sanity.

“Hii-chan, maybe you should sit on the bed instead?”

“No. I want to stay like this a little longer.”

…God help me, she’s too cute.

Can I hug her? No? Even if I pay? Still, no? Yeah, I figured.

Damn it. I almost fell for her.

But unfortunately, in this world, Hii-chan is my real little sister.

Still! Think about it.

Our relationship isn’t like normal siblings.

Sure, from her point of view, we’ve lived together for sixteen years under the same roof.
But I’m different.

Even though in my old world we were like siblings, the memories and time we shared weren’t even close to the same.

So, to me, Hii-chan isn’t my “real” sister— she’s more like the same girl from the old world, but in a sister’s body.

And the worst part? She once confessed to me.

So having her like this, sitting on my lap…

You get the idea, right?

I’m fighting for my life against my own instincts right now.

If we really were lifelong siblings, maybe I could handle this kind of closeness without thinking twice.
But this situation? Completely different!

And she’s a high school girl!

Okay, I’m technically a high schooler too right now, but still!

Let me be clear—this is no ordinary affection. This is torture powered by love.

“Is it… not okay?”

She looked up at me with those big, gentle eyes— the kind of look people call “puppy eyes.”

“Not okay!? No! It’s totally fine! Actually—thank you very much!”

How could anyone say no to that!? No man alive could! Anyone who could resist that deserves to get kicked by a horse!

I—I need to think about something else. Anything else!

“H-Hii-chan,” I said, forcing a cough. “What kind of guy was I… before? The old me.”

“Huh? Let’s see…”

Without moving an inch from my lap, she tilted her head thoughtfully.

Cute.

“Well, you hated studying, always forgot your textbooks…”

Ah. So that’s why I only had pens and pencils in my bag.

“You always left papers and trash piled under your desk…”

Yeah, that sounded gross.

“Your handwriting was terrible, and you were super lazy.”

Wait, that’s just insults now.

“But…” she continued softly, “You were kind, and you always looked after people. That’s why you had so many friends. And when someone was doing something wrong, you’d scold them properly.

When I was lonely, or when I cried, you always came to me. You always stayed by my side.

That’s why… I really, really love my big brother.”

She said it shyly, with a smile so warm it could melt ice.

“Guh—!”

Stop! My HP hit zero five lines ago!!

“O-onii-chan!?”

“H-Hii-chan… sorry, but… I need to be alone tonight.”

“Eh? You’re not gonna sleep with me?”

“No.”

“You’re not?”

“No. (Second time.)”

Even with that adorable face, no means no!

…Can I really survive this household?

Anyway—after a long talk and some serious persuasion, I finally got her to leave.

Needless to say, I didn’t sleep a single minute that night.