Kohane, a high school girl, witnesses the affair of a married woman in the neighborhood, Keiko, and out of curiosity, she ends up having a relationship with Keiko's husband. Keiko also becomes interested in Kohane, and the two end up having a lesbian relationship. Kohane's mother, Rie, is also unable to suppress her interest in Keiko's affair partner and ends up having a relationship with him. Three women are swept away by the passion of sexual desire...!