Mao and her husband are regularly looked after by her husband's kind boss, Owada. While her husband is away on a business trip, Mao is treated to a meal at her boss's house, but when she comes to retrieve something he left behind, she is hit by a nightmare. Owada puts her to sleep with drugs, ties her up, and rapes her. Mao resists, but her boss's threatening, confining and raping her gets out of control, and she is trained to serve his dark desires...
