[Update: 0.3.11.24]

You are a double of yourself only from a parallel universe. Your doppelganger is several years older than you, and you are only 16 years old and you have been sheltered.

It turns out that your adult version does not live alone, but with three guys. Kyo, Masaki and Taiki. They are very friendly and you liked them.

You are sometimes left alone at home, and sometimes with someone to keep an eye on you.

And now you are sitting alone in the house while the others are at work.