Miyata is careless with both women and money and already has a girlfriend he can manipulate. When he realizes her adult younger sister Azu is exactly his type, he plots to possess her too. While his girlfriend sleeps, he enters Azu's room and blackmails her with erotic videos secretly taken of her older sister. She resists but is eventually manipulated into yielding. Later, Miyata summons Azu to his home and begins an aphrodisiac conditioning program meant to turn her into his personal sex toy.