The beautifully developed female college student Akane has an sexually undeveloped body, sensitive nipples, and a responsive sex organ. However, at home, her stepfather, who had forcefully hospitalized her frail mother as soon as Akane turned adult, would bind her every night and use her as a toy. Meanwhile, at the university, a seminar professor who saw through Akane's troubles began to tempt her ripening body, turning the professor's office into a room for sadistic training during the day. Akane transforms into an ultimate masochistic female slave through round-the-clock bondage training.
