Mami runs a local beauty salon and lives a modest, peaceful life with her husband. However, her husband recently developed erectile dysfunction and began harboring a cuckolding fantasy, actively seeking NTR sex. Conflicted at first, Mami ends up being taken by a customer from her salon—orgasming with cock other than her husband's, receiving creampie after creampie. Their once-happy marriage spirals into a world of depraved fetish play, as she gradually falls into sexual submission.