A beautiful tutor comes to the aid of a foolish high school dropout who has been failing at a third-rate university for five years, but this The tutor uses her attractive body to seduce her students by showing off her breasts and panties, making it difficult to study. And every time he can't solve a problem, he punishes her physically and "spits out what he's learned by masturbating. It is forbidden to masturbate with a chastity belt and manages ejaculation, and makes the student who cannot ejaculate to serve the student who suffers from a lack of ejaculation to do his own cunnilingus. Only to enjoy a sense of climax and superiority, failing the examinations and extending his teaching position again to satisfy his money and sexual appetite. It was a vicious tutor called "the evil tutor". And now the first day of class is about to start, will the wandering student be able to get caught in the trap of the beautiful tutor Will we be able to do this?