Kyoko Nagase, 43, is a mother and sales manager at a staffing agency. She married at 20, and last year, when her child became an adult and started working, she finally realized her long-held dream of a "weekend marriage." She now spends weekends with her husband, sharing meals and sex. While he seems satisfied, Kyoko struggles with insatiable sexual desires and feels unfulfilled. She turns to a dating app and gradually becomes addicted to cheating. She meets a man who is a true cock lover. Her slender naked body is repeatedly penetrated by his huge dick, climaxing over and over. The film realistically captures her mind being completely overtaken by the intense pleasure.