Reiko Tono, having awakened to the pleasures of lesbian desire, lives her days as the owner of a women-only apartment building. One day, Madoka, her junior from their shared past in a girls' dormitory, comes to her seeking residency. Upon learning that Madoka once experienced her first lesbian encounter in that same dorm, Reiko, overcome with uncontrollable passion, seduces her. The two give in to their mutual desires, embracing a passionate relationship between women.