Childhood friends, Rouma and Tamaki, are not just friends. Actually, they have sexual intercourse, but they're not lovers, either. One day, Tamaki gets angry with Rouma and announces to break with him because he didn't take contraception measure while they were doing things. However, because they belong to the same club, they have to meet. Seeing their cold attitudes, Yuuri tries to make them friends again. However, she can't hide her love toward Rouma, and confesses her love. Then, they make love, but... (Source: AnimeNfo)

Tamaki happens to find a sketchbook in her closet. Upon seeing the pictures within, she realizes that Roma has been with her in her memories. Meanwhile, the kickboxing club Roma belongs to is about to close because Roma is the only member and thus cannot take part in team tournaments. However, Roma isn`t concerned, and draws a nude picture of Misaki during his supplementary art class. When he beats up a stalker, the grateful Misaki begins to seduce him. On the other hand, Tamaki begins to be unsatisfied with their relationship as mere childhood friends. (Source: AnimeNfo)