Finally, the hole for escape has been opened.

But there is still a problem. I’m still in a child’s body.

I will escape only after I take the medicine to cure my child form.

Today is just the day when Aoi chan’s pon duty. I don’t know if I could ask her how much progress the antidote is making.

That’s what I was thinking……

“Good morning, Onii san.”

“G-good morning, Aoi chan–Aoi chan !?”

The day after the hole was opened into the garden, I was astonished to see Aoi chan in my room.

There were large dark circles under her eyes.

No matter how you look at it, she had not had enough sleep.

“A-are you okay? Are you sleeping well, Aoi chan?

“Ah, yes. Don’t worry about me. I’m almost ready to make the medicine that will cure Onii san in a few more days…….”

So it’s my fault ! !

“Aoi chan, you can take care of me later, so go to bed right away, okay?”

“No, I’m fine until 3 o’clock……”

“How many nighters are you on now?”


“Now ! ! Go to sleep ! !”


Didn’t expect me to get angry, Aoi chan slipped into bed and started sleeping.

For some reason, in my bed.

But it hurts my conscience to wake her up after she’s fallen asleep.

I’ll let her sleep like this.


After a while, suddenly someone knocks on my door.

“Hmm? Who is it? Yes.”

“Excuse me, Onii san.”


I was completely frozen.

The reason is that it was Aoi chan who came in through the door.

Erm, eh? I don’t understand.

There are two Aoi chan’s in my room? Hm? Aoi chan has a twin? Actually, the seven sisters next door were actually eight sisters?

No, no, that’s not possible.

“Ah, don’t be surprised. I’m not the main body.”

“No, seriously, I don’t understand. Eh? You’re Aoi chan, right?”

“Yes, I am. Well, it just looks like it. Look at this.”


Saying so, Aoi chan rolled up her arms.

Under her pale skin, there are numerous glowing lines instead of blood vessels.

How can I put it, it looks like a machine?

“Is this……?”

“This body is a highly advanced prosthetic body modeled after the human body and utilizing nanomachines. By transferring my consciousness into it, I can establish my existence as–“

Aoi chan explained it to me carefully, but I have no idea what it is.

It was still in the beginning of the explanation, but I felt like my head was going to explode.

I stopped Aoi chan once.

“Wait, stop. Erm, do you mean to say that you are a robot that looks like Aoi chan, and has her consciousness transferred from Aoi chan?”

“As expected of Onii san. That’s right.”

“Oh no. I understand but at the same time, I don’t. Isn’t that too much!? That kind of thing!?”

“Yes. Because it is based on a wide variety of events and principles that are impossible with today’s common science.”

Those words suddenly reminded me of something.

That’s right.

This girl is a genius with an IQ of 300…..

No, that would be too much of a fantasy ! !

“Well, don’t worry about the details.”

“I don’t think it’s fine at all.”

“I’ve reached the limit of my activities with my flesh and blood body, so I decided to use this one.”

“You can’t just switch bodies like a broken pencil……”

“It’s okay, I’m sure there is no mistake in my theory. I can change my body safely and securely. Eventually, I think it will be possible to abandon the living flesh and become immortal.”

“That idea is completely mad scientist ! !”

Somehow, I feel like I saw a glimpse of Aoi chan’s horror for the first time today.

I feel something dangerous, comparable to the deep darkness that Murasaki chan sometimes shows.

As a human being, I have to be careful about this ! !

“A-Aoi chan ! !”

“What is it, Onii san?”

I grabbed Aoi chan (prosthetic body) by the shoulders and looked her straight in the eyes.

“I have no intention of denying what Aoi chan does. But you must never abandon your sense of ethics.”


“Ethics is something that is necessary for a person to be a person at the very least. If you give it up, you become a different creature.”


Aoi chan quickly looks away.

That alone gave me a vague idea of ​​what Aoi chan was thinking.

“Did you ever think that it would be safe to use your own body in any type of inhumane experiment?”

Aoi chan’s body trembled with fear.

It seems I was right.

“Onii san, are you a psychic?”

“I’m not, but I’ve known Aoi for a long time. And it’s your own body, you know? Pick up your discarded ethics now ! !”


Aoi chan, who turns away and listens to my words.

Why is this age-appropriate?

“Aoi chan.”


“I understand that Aoi’s theory is perfect and safe and secure. But if something unforeseen happens, it’s the people around you who grieve. Not only Akane san and others, but I would also be sad and scared if something happened to Aoi chan.”


“So don’t do anything too dangerous.”

“……I’ll be careful next time.”

“You’re very honest.

I’m sure Aoi chan will probably do dangerous things secretly in the future, but let’s hope she remembers my words every time she does.

“Then, Onii san. Please give me your opinion on this body for now.”

“Hmm? My opinion?”

“Would you prefer if the tits were a little bigger?”


Aoi chan held my hand and let me rub her own breasts.

It was the perfect size to fit in my hand, and was soft and just like the real thing.

……Understanding was delayed for a moment.

“Whoa !?”

I jumped back in a panic.

However, Aoi chan is approaching me with a stare.

“What do you think? Onii san.”

“Wai, w-what !? Y-you have to take care of yourself ! !”

“……? It’s not my real body, so I think it’s safe.”

“Eh? I-is that so?”

I was getting confused.

“Go ahead, touch it and see for yourself.”

“Oh, um, yeah.”

If it’s not real, is it safe?

I tilted my head and reached for Aoi chan’s (prosthetic body) breasts with a puzzled look on my face.

……Soft. It feels like the real thing.

“Wait ! ! What am I doing !?”

“Onii san, tell me what you think of it.”

“Soft–not that ! ! Oh, God ! ! I’m done with this ! !”

I dove into bed to escape from Aoi chan(prosthetic body), who was asking for my opinion.

I forgot that Aoi chan (the main body) was asleep.



“Onii san, please don’t look at my sleeping face too much.”

“S-sorry. W-wait !?”

And for some reason, Aoi chan (prosthetic body) also crawled into the bed.

I’m sandwiched between two Aoi chan.

“I’m going to sing you a lullaby like I did before.”

“N-no, I mean, we don’t need to be so close…….”

“This is what we have to do in order for the three of us to sleep together.”

Thus, I spent the rest of the day sandwiched between the two Aoi chan.

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7 months ago

I love this shota arc what a shame it will end soon