Otome＊Domain by Palette Qualia - Adult Sex Game

Minato was left without any relatives after his grandmother’s passing. He was taken in by Kazari, an ojou-sama the same age as him who managed a girls’ school. With nowhere else to go, he ended up in a girls’ uniform and started living in the girls’ dormitory. However, all the girls living there are quite useless. Even though he was the one who was taken in, it’s like he was the one taking care of them instead