Nanami, a beautiful wife who lives with her husband who has a sickness, is raped by her husband's boss, Sugimori, who visited her husband on a business trip one day. The experience of being violently pierced in the back of the vagina with a forcibly screwed cock and pouring muddy semen many times imbued Nanami with the recognition that she was "dirty." Sugimori takes advantage of the weaknesses of losing chastity and makes Nanami a comforter many times. However, Nanami, who was stressed by her husband's innocence, is eroded by the sensation of a dirty liquid being shot into her body.