The emptiness felt by the wife when sensing her husband's infidelity. Uchida, a young man who works together with Kaho at a convenience store where she has a part-time job, notices such a change in Kaho and calls him. Uchida is drawn to her mature charm, and when she invites him for drinks after work, Kaho responds to the young man's flirtation obediently, even though he is very hard to understand.