A married woman named Mei who works at a gyudon chain becomes close with her coworker, a college student. Mei is drawn to the earnest and sincere young man. One day, because they finished work at the same time, they go out drinking and end up having sex in a hotel in their drunken state. After that, they also do it after finishing their shifts, during breaks inside the store, and even in the kitchen while the store is open, realizing that their bodies are perfectly compatible…
