Mio is a married woman who has been married for several years. Although her relationship with her husband is good, she is dissatisfied with his overly gentle sex. One day, Mio confides her troubles in her married life to Kondo, the bartender at her favorite bar. Kondo, who has had feelings for Mio for some time, is unable to suppress his desires and attacks her from behind. He forcefully pulls up her skirt and thrusts into her with a violent and powerful thrust that is different from her husband's. Mio gradually loses the strength to resist and is unable to endure and climaxes repeatedly...