A perverted devil teacher and a brave beautiful girl who loves him and responds with a smile to vulgar acts as ordered. An immoral mistress relationship that unfolds perverted acts in the school, that is their daily life. A sober and serious student, Yura, a teacher, Asano, and her teacher, have a physical relationship that the students do not know. Asano escalates the act day by day and forces vulgar and obscene sexual acts that cover her eyes. The daring and filthy relationship continues today, willing to let his co-workers and students find out.