It's been five years since Misao (Kawakami) married Miyuki's (Kurata) brother. The sisters-in-law, who teach at the same school, were as close as real sisters. …… However, the relationship between the two begins to be distorted by the propensity of a certain student. The student's name is Ryo Nishiki, and he usually plays a very ordinary school boy. However, when the sadistic desire that has grown inside him goes out of control, the daily life of the young female teacher sisters falls into a swamp of lust driven by lewd jealousy...
