Shion is a female college student with a boyfriend who is in the same seminar at the University of Science. Her seminar professor, Kamikawa, has a dandy aura and is known as an excellent instructor at the university. Sensing Shion's masochistic nature, the professor waits for an opportunity to abduct and tie her up. The rope digs into her young, voluptuous body and her voluptuous large breasts... the sadistic professor seduces Shion from her student's boyfriend and awakens her into a masochistic slave. A full-scale NTR drama! A new series of bondage training from S1!!!