Onimai histórias

I swear I've waited years for this and it still doesn't exist- Welcome! The first Onii-chan Wa Oshimai Or Onimai or Im now your sister or- THERES TO MANY NAMES FOR THIS...

A fanfiction of the series ONIMAI: I'm now your sister! (お兄ちゃんはおしまい!) Mihari is going out for a day, and Mahiro will be alone in the house. It's August, meaning that it'...