Konishi, a university student, is working the same shift at the convenience store where he works part-time, as Ichika, a married woman who recently started working part-time. Konishi is seduced by the unconscious eroticism of the slender and beautiful Ichika, and invites her out for a drink. He finds out that Ichika's husband's income has decreased due to teleworking, so he is making up for it with Ichika's part-time wages, and that Ichika herself is sexually frustrated because her husband is cheating on her with another woman. The two sympathize and realize that they were both secretly looking for something exciting, and make the mistake of saying, "Just this once..."