In the main storyline (episodes 1 and 4), Takashima Shigure is a well respected and hard working honor student. She excels at both academics and sports but one day her classmate Kita Komatsu discovers another side to her and how she deals with the stress of being an honor student. The two of them agree to share the secret, and Kita now unexpectedly has a wild sex addict for a girlfriend. There are also two other different stories in episodes 2 and 3.