Imamura Hinata. A high school student, who has a complex. Everybody thinks he is a girl.He wants to get more masculine, no matter what. Until one day he finds a strange advertisement...

An anthology of separate stories threaded together by fantasy isekai and boobs.

Orphaned after the his parents were murdered, Uta Rain was ultimately auctioned off as a slave. Certain that he would be treated terribly no matter where he was taken, Uta was in despair. But what awaited him was... a luxurious meal and five pretty sisters. However, they were the daughters of the demon lord who was defeated by the hero 16 years ago?! Uta's fate begins to change drastically!