Shouko has been married for two years to her husband, Hide, who was her high school sweetheart. Although she is dissatisfied with their lack of sexual relations, they lead a happy married life. One day, her husband's boss, Abe, tells her that he suspects her husband of embezzlement. He forces her to have sex with him on the condition that she protects him, and she is unable to resist and is raped. He forces a penis into her mouth and makes her climax over and over again in their bed, a humiliating life for Shouko. Thinking of her husband, Shouko endures the humiliation, but her body and happiness are taken away...