A strict teacher at school.She is a lewd woman who indulges in affairs with her students after school.Chisato had two faces.However, recently, her student and affair partner, Kato, has started to ask for a relationship at school, and the balance between the two faces has been shaken.In the classroom.in the toilet.in the staff room.Even if I try to persuade him, Kato won't listen.Her teaching life will end if it is discovered.She endures her desperate voice so that Chisato won't find out.However, the more she endures, the more her sense of immorality increases, and she finally swallows even Chisato's reason...