My name is Saitou Shouta.

I only just started first grade a few days ago, a fresh, lively little boy.

I was born into an ordinary household, with both of my parents working.

My looks are average, the kind of ordinary kid you see everywhere.

But there’s one thing about me that isn’t normal.

That is, I have vague memories of my past life.

In other words, I’m a reincarnator.

Well, that doesn’t mean I get any reincarnation perks like in light novels, so I never really paid it much mind.

Up until today…

“Super Combination! Ultimate Mode!”

“The combination scene never gets old. It’s awesome every time, right?”

“Yeah.”

“If technology keeps advancing, do you think we’ll get to see the real thing someday? I’d love to see it.”

“Yeah, me too.”

Right now, I’m watching a mecha anime in my living room.

Liking mecha anime is a hobby I carried over from my past life.

And sitting next to me is a girl who nods along every time I talk to her.

She’s my neighbor, living on the same floor of the same apartment building.

Both of her parents work as well and get home late, so we go back and forth between each other’s places and spend time together until our parents return.

We’re close childhood friends.

And this is very important, but this girl is really, really cute.

I can say with absolute confidence that she’ll grow up to be beautiful.

Normally, a girl like her and someone like me wouldn’t match.

If you compared our faces in the same photo, you’d understand that whether you wanted to or not.

But still.

If I just build a close relationship with her starting now, then when we grow up, we could get together and end up married, right? There’s at least a chance, isn’t there?

After all, even in my past life, there were times when I wondered why a guy like that had such a beautiful wife. So I should be able to pull it off too!

Ah, right, I still hadn’t mentioned the girl’s name.

Her name is—

“Asuka!?”

“Hm?”

“Asakura Asuka!?”

“Yeah? What’s wrong, Shouta?”

At my sudden shout, Asuka tilts her head to the side, looking puzzled.

Unfortunately, I didn’t have the luxury of worrying about that.

Because I remembered.

I remembered that this world was the setting of a doujin manga I had read in my past life.

【Naturally, I’m NTR’d (Childhood Friend Arc)】

An R-18 work with erotic content.

As the title suggests, it’s an NTR story.

The protagonist, Saitou Shouta, had a childhood friend named Asakura Asuka. They lived next door to each other in the same apartment building, were close enough to go back and forth between each other’s homes, and even promised to get married someday.

When they entered middle school, the two grew distant. Shouta went to a public middle school, while the talented and beautiful Asuka attended a private one. Their schedules no longer lined up, and Asuka was busy with her studies, leaving them with fewer and fewer chances to interact.

As time passed, Shouta advanced to a public high school. Asuka also chose a public high school rather than a private one, the same school as Shouta’s. Shouta was happy at the thought of attending the same school as his childhood friend again. However, when they reunited after so long, Asuka was distant, and she rejected his invitations to walk to school together. She quickly became popular as a beautiful girl at school, and Shouta spent his days watching her from afar.

Then, one day during a holiday, Shouta saw Asuka in town, happily linking arms with an unfamiliar man. When he called out to her on impulse, Asuka told him the man was her boyfriend. He was a handsome man dressed in brand-name clothing.

That night, while Shouta was still in shock at home, he received a message on his phone. It was from Asuka, with a video attached. When he played it, the video showed Asuka naked and having sex, repeatedly letting out moans of pleasure. The partner was almost certainly the man he had seen earlier that day.

“Back then~, I liked you, Shouta~♡ But now~, compared to you, Shouta from an ordinary family, with looks and grades stuck at fifty points~♡ I loooove~♡ a rich, handsome guy with looks and grades at a hundred points~♡ Sooo, sooo, sooo much~♡”

“…Shouta. Hey, Shouta.”

“Huh—”

Someone tugged on my arm, yanking me out of the flashback and back into reality.

The Asuka sitting beside me was a child. Even so, she still carried traces of the high-school Asuka from the manga. There was no doubt in my mind that she was that Asakura Asuka.

“You look pale. Are you feeling sick?”

“No, I’m fine.”

I shook my head, forcing the image of Asuka pulling an ahegao with a double peace sign in the final scene out of my mind.

To my childhood friend, who was still looking at me worriedly, I told her again that I was fine.

“More importantly, aren’t you getting hungry?”

“I am.”

“Let’s make dinner, then.”

“Okay.”

I took Asuka with me to the refrigerator.

I heated up a few frozen foods, along with some ready-made rice, in the microwave.

Thanks to my memories from my past life, I could cook properly if I wanted to, but my parents didn’t allow it, which was only natural. There was no way they’d let a first grader use fire on his own. If something caught fire, it’d be a disaster.

That’s why our dinners were almost always frozen meals.

We say itadakimasu and start eating.

I stare at my childhood friend’s face as she munches away right in front of me.

So that’s it… Someday, this girl is going to be made to go ahe-ahe by a rich, handsome guy…

If it were something forced, without her consent, I’d probably do everything I could to protect her.

But that wasn’t how it was.

In that manga, the protagonist “naturally” gets cuckolded.

“Shouta, you’re sighing again. You’ve been doing that this whole time.”

“Ah, sorry. Even though we’re eating.”

“No, it’s fine.”

“…Hey, Asuka. You like rich, handsome guys, right?”

“Hm?”

“When you grow up, you want to marry a rich, handsome guy, don’t you?”

“I’m going to marry you, Shouta.”

“Haha… I see. Thanks.”

“Yeah!”

Asuka smiles brightly, and I force a dry smile in return.

A childhood promise to marry, something like that only ever happened in fiction or fantasies in my past life.

And yet, I’m experiencing it right now.

Just like the protagonist of that doujin manga.

The future will probably unfold exactly according to the script.

Letting out one more deep sigh, I gave up on ever becoming close with Asuka from here on out.