High school student Madoka (Hitomi Komatani) has a bit of a sadistic side. She gets groped on the subway and believes the perpetrator is a young guy, who turns out to be Keigo Kakiguchi. Madoka then blackmails Keigo and ends up staying at his house. Keigo is a virgin. After Madoka moves in, the sensual life of these 2 twisted people begin.
