"At some point, I started daydreaming about being tied up." One day, An finds out that her idol, Chiharu-sensei, is a trainer at the training club. She volunteers to be a sex slave and asks to be trained... Bondage training, humiliation play, public masturbation, strap-on deep throat, being turned into a pet bitch... The Chiharu masochist teacher awakened to the pleasures of SM lesbianism takes pleasure in hard training play and seeks extreme punishment... A secret story of a lewd masochist slave training lesbian unfolds in the flower garden of a noble school.