Kasumi, a jobless NEET kicked out of her parents’ house, moves into her working ex-boyfriend’s home and lives however she wants. He tries to talk her into leaving, but she already knows every one of his erogenous zones and has taken control of his cock. She mocks him while making him ejaculate on her terms, allows raw sex only in exchange for that control, and he ends up obeying her instead of throwing her out.