Suehiro-san, who has just started working as a part-timer, looks young, but she is four years older than me and is married. I went out drinking with her, who seems to be having trouble with her husband, and we hit it off, and without either of us inviting her, we ended up having an affair. Even after the alcohol wore off and we both came to our senses, our sexual desires were uncontrollable, and we continued having sex many times after that. Having sex at home just wasn't enough, so we secretly made love in the back room of the store. My co-worker, Lin, seems to be starting to notice our relationship, but she still can't break off her affair with Suehiro-san...