Yotsuba, a married woman working at a gyudon chain store, becomes close with her college student coworker. Yotsuba is drawn to the earnest and sincere young man. One day, they go drinking because their shifts end at the same time and end up having a relationship. After that, they have sex in various places like after work or during breaks inside the store, even in the kitchen while the store is open, realizing that their bodies are perfectly compatible…
