![Koinaka: Koinaka de Hatsukoi x Nakadashi Sexual Life The Animation](https://animehentai.pro/wp-content/uploads/2022/01/6ladFuBAd94jsEoomP3fpuaHxRE-185x278.jpg)
Shiori and Saori are twins and secretly in love with Onii-chan. Recently, they’ve developed a peculiar interest that will test Onii-chan’s sanity. “I will ask Onii-chan to teach me several things.” When the summer holidays arrive, he is asked to take care of the house and the girls by his mother. Will Onii-chan commit any sin?