Isekaid 40ish Man Returns, Regressed as a Peerless 17-Year-Old

It is a little exciting to see men and women brushing their teeth side by side as they get ready for bed as it gives a sense of unusualness.

The sink with about ten faucets is located outside so this is the kind of scene you’ll see here.

This was my daily routine when I stayed overnight at the office or in the other world but in a peaceful environment, my impression also changed.

I remember when I was a student, even an event of this magnitude is already a big deal.

I have doubts about whether it is really peaceful right now but I know I won’t be wrong if I enjoyed a little bit of this loose camping.

-0-

Yui, who was using an electric toothbrush at a distance where our shoulders were almost touching, glanced at me and smiled.

What was that?

I’m feeling embarrassed.

Yui is the only one using an electric toothbrush here. It was a time when not so many people used electric toothbrushes.

It reminded me of how much of an ojousama she is.

「Did you brush it properly? Do you want me to polish it for you?」

「Are you Fake Story’s Karen-chan?」

Yui was a little surprised at my reaction.

I remember that the anime wouldn’t air until many years later.

「Wait a minute, brushing oniichan’s teeth is my responsibility」

Futaba immediately interrupts us, but I don’t remember giving her such a role.

Everyone around became speechless.

Yui, why are you speechless too?

You’re the one who caused this, right?

-0-

-Scene Change-

-0-

In a tent for three, Yui, Futaba, and I were in a shape of 川 with me in the middle.

「Hey, this is strange. What happened to the two boys who were supposed to be with me here?」

This was supposed to be a tent for three boys.

「They decided to use another tent so it’s okay.」

Yui said so casually.

「That tent must be tight now……」

「I made sure to adjust the number of people so there won’t be a problem.」

More thorough than I thought.

「I’m surprised they listened to you.」

「I negotiated with the people who colluded with us during the orienteering. They need to get their share of ingredients for dinner after all.」

「Whoah……」

I guess they can’t refuse.

She’s still a high school student but she is already able to negotiate that much.

「Then…..」

Yui dexterously put herself on the sleeping back. On the opposite side, Futaba did the same.

「Why are you so close……」

「（Voices echoes outside quite a big in a tent so we have to whisper.）」

「（Is it about that?）」

I whispered to Yui with my lips close to her ears. I also quieted my voice down as she did.

Even after a day of moving around, why does she smell so sweet?

「（Yeah……）」

Yui nods a little.

「（What are you talking about?）」

She didn’t tell Futaba?

「（I was told that a variant may be active at this campsite.）」

「（Are you certain?）」

「（No, I heard it’s only a possibility based on the organization’s analysis.）」

「（That’s a long way of saying no……）」

Futaba’s trust in the organization has fallen to the ground.

Well, no one can blame her, right?

「（But you found one, didn’t you?）」

Yui gives me a mischievous smile.

Her cuteness multiplies given how close she is.

「（Why do you think so?）」

「（You were watching out for that person in a way that person won’t be wary of you）」

「（Heh….how did you even notice that?）」

「（Because I’m always looking at Kazu）」

「（Can’t you stop flirting in front of the little sister?）」

No, we’re not flirting.

「（So, the fact that oniichan is looking at someone means that person was a student or someone related to the campground? I mean, normally, I’d be suspicious of the coach….. ）」

「（That person is—it looks like I no longer need to say more）」

The moment I said that, the ground caved in and the three of us were dropped into the abyss.