Aoi, a female college student, fell in love at first sight with Takeshi, a member of her club, and they started dating, but Takeshi has a sadistic streak and during sex, she's strangled, given irrumatio, and made to swallow every time. It escalated to the point where she was made to walk around with a dildo installed, and told to pick up a stranger and have sex with him. Takeshi's desires are increasing in intensity...
