Onna Kyoushi Nijuusan-sai 1

女教師二十三歳

Honjou Rumiko is a school teacher caught in a web of blackmail and deceit. She is caught by 2 Yakuza gang members and forced to have sex with them and their clients. Eventually they start recruiting her students and she is forced to break up with her fiance as her world turns upside-down.