Misaki and Aino go to the same school and work at the same part-time job. One day, Misaki sees Aino's huge dick in the bathroom and is aroused by it, so she attacks him. Aino, who has always had perverted delusions, begins to feel pleasure as Misaki rapes him. The two then start dating, and their perverted sexual acts escalate to the point where they even do fist fucking! They cum endlessly.