By chance, Yu's wife, Yui, ended up doing her teaching practicum at the school where her husband works. Keeping their marriage a secret, Yui began her training... Once, Yui's former mentor and vice-principal, Takagi, caught her in a compromising situation, leaving her unable to resist as he assaulted her. Whether during class or after school, Yui was helplessly toyed with. As these acts escalated, even the class troublemaker, Imaoka, found out about their relationship...
