Mayu is a young wife who lives with her husband and her insensitive father-in-law, whom she hates. She doesn't want to live together and has asked her husband to separate, but her father-in-law, who saw her masturbating, sexually harasses her and plays with her body... Despite her feelings of reluctance, Mayu is made to cum with his experienced techniques. From that day on, she continues to cum every day... The wife, consumed by pleasure, eventually begins to crave the cock and semen of the man she hates, shaking her hips and climaxing like crazy...