Aoi, a female college student, falls in love at first sight with her clubmate Takeshi and they start dating, but Takeshi has a sadistic personality and during sex he chokes her, deep-throats her, and makes her swallow his cum every time. However, things escalate and he makes her walk around with a vibrator inside her, and tells her to pick up strange men and have sex with him, and Takeshi's desires become more and more intense...