One day, Hikari, who is troubled by the lack of sex between her husband and her husband, suggests that she register for a ``couple exchange club.'' She vehemently opposes a suspicious organization that she is not used to hearing about, but her husband persuades her and she gives in. She immediately decided to have sex with a certain couple. At first, she rejects Hikari, but she becomes addicted to the pleasure that her husband cannot feel... A slutty married woman loses her mind and drowns in sex.
