Minasama no Omocha desu

Tsukimiya is a dutiful kid who has been looking after his family since his mother's passing, and a popular pretty boy at school, but he rejects all those who confess to him due to an unrequited love he holds for one of his teachers. However he suddenly finds himself kidnapped by a group of beautiful women, who promise him a life of daily torture from now on.

(Source: MU)