Nanase, who has been married for seven years, has not had sex for about three years due to dissatisfaction with her husband. Recently, she has had an urge to have sex with someone, but she is worried that she will never want to do it with her husband, who is selfish and has a rough sex life that does not give her any pleasure. Therefore, she uses an adultery site to seek out affairs with men other than her husband, but her sexual desire is bottomless.