Miyuki lost her mother at an early age and lives with her father. When Miyuki's grandfather, Genzo, the president of Jindai Construction, passed away, the Jindai family was shaken by the issue of who would take over the family business. ...Then, an incident occurred. The young lady disappeared. Confinement, loss of virginity, and torture training... The humiliation of the sad young lady who was reduced to a entertainment slave.