Riho is a busty married woman who lives a happy life and loves her husband. However, Riho has a small problem. Although she has no complaints about sex with her husband, she cannot forget the body of a man she had sex with once before, and masturbates while remembering that sex. However, once she finishes masturbating, she can't wait for her husband to come home and goes back to her normal life. Then, one day, her husband gets drunk and comes home with a junior colleague. That man is the "man she had sex with once before." Since that day, something inside Riho breaks... Daily lovey-dovey sex with her husband, a blowjob and oral ejaculation next to her sleeping husband, continuous creampie sex while her husband is away on a business trip... a total of six ejaculations. A beautiful wife's adultery swamp story that goes astray when she reunites with a man she can't forget.