The newly qualified and vulnerable Miss Ichika arrives at an all-boys high school and becomes involved in a physical relationship with Takatsuki, the student council president. The truth is that Takatsuki secretly admires her, although he refuses to let his feelings show. While it seems to be a game, there is also a desire for love between the two. However, it's still a forbidden student/teacher relationship. In the empty classroom after school, in the nurse's room during class, and at his house... An affair which no one can know about is just beginning.