Nao, a married woman in her third year of marriage, has recently been feeling troubled by her husband's cold attitude. Her husband seems to be cheating on her, and Nao, feeling lonely and spiteful, has chosen a job that she cannot tell anyone about. She can only meet one man a month, and if he wants to see her, she must go, and the deadline is 7pm... Under various restrictions, she is introduced to a man named Oki and they go to a hotel. When Oki is suspicious of why she started working, Nao says that she wanted to be free, and slowly takes off her clothes...