Yumi Kazama, a teacher who is passionate about education and cares about her students. She fearlessly confronts troubles with a dubious organization that has students involved, but she is overwhelmed and falls into the hands of the organization. As a real-life distribution video, the appearance of the public ryo* is scattered all over the country. It climaxes many times in the relentless torture that exposes the sexuality of the woman hidden under the teacher's mask. There is no trace of a teacher in that ecstatic expression anymore.