18+ Boku to Nakadashi Onna Kyoushi: Sensei no Naka wa Seieki Mamire

Masahiro transfers to a boarding school. On his first day of new school, he is mistakenly treated as an underwear thief. And he is told that a school dorm is closed down. After all, he starts to live at a teacher dorm. There are only three female teachers, who think him as an underwear thief, and one female student living there. Also, they need to cook meals and clean by themselves, and he is treated like a slave by them. But one day, he catches a real underwear thief, and relationships between Masahiro and teachers start to change...

(Source: ErogeShop)