Mei, who has been married for three years, is a busty housewife who adores her husband. However, even Mei has trivial worries. She has no dissatisfaction with the sex with her husband, but she cannot forget the body of a man she was once with, and she indulges in masturbation while reminiscing about that encounter. After the act of masturbation, she eagerly awaits her husband's return and goes about her usual routine... living through such days. One day, her husband, drunk, brought home a junior colleague. That man was the very 'man she had been with once before.' From that day on, something broke within Mei... Routine loving sex with her husband, handjob and blowjob with cum in mouth while her husband sleeps, continuous creampie sex during her husband's business trip... a total of six ejaculations. The story of the beautiful married woman straying from the path due to her reunion with the unforgettable man, sinking into the swamp of infidelity.