"My day begins with sex." In the home and at school, a quiet and unresisting girl becomes a target for the men around her, being forced into sexual release almost daily. She experiences bondage play and breeding training by her homeroom teacher, performs fellatio on classmates to silence them, and engages in sexual acts with her father-in-law... Day after day, she is continually given pleasure and orgasms, and eventually, her heart becomes tainted, her body descending into a masochistic one that craves the sensation of ropes... The pure and innocent 'Yuzuka' finally experiences bondage for the first time!!