Iihashi Kousuke here. I started living alone in high school.

…Though it's on the same floor of the apartment building as my older sister.

My next-door neighbor also seems to be living alone since high school.

When I greeted my new neighbor, I noticed something.

An unbelievable beauty… no, wait, what? Toumon Serina?

Isn't that the girl who was in the same class as me in elementary school—?

A sweet and delightful semi-cohabitation rom-com, begins here (?)

Published on Shousetsuka ni Narou, Kakuyomu, AlphaPolis, and Nola Novel.