START-108 A hidden beauty working at a beef bowl chain restaurant, a part-time housewife, has an affair with a student part-timer without contraception and cums inside her.

Yotsuba, a married woman who works as a burly boy at a beef bowl chain, becomes close to a college student who is a co-worker. Yotsuba is attracted to the earnest and sincere young man. One day, they go out drinking because they have the same commute time, and they end up having a relationship. After that, they continue to have sex at home after work, during their breaks, and even in the kitchen during business hours, and they realize that they are perfect physical chemistry...