Nao, a married woman in her third year of marriage, has recently been troubled by her husband who has a cold attitude. Her husband seems to be having an affair, and perhaps because of guessing and loneliness, Nao chose a job that she couldn't tell anyone. There is only one other party a month, and if you want to see him, you have to go, and the time limit is 19 o'clock ... In the midst of various restrictions, he is introduced to a man named Oki and goes to the hotel. Nao says that she wanted to be free to Oki, who is suspicious of why she started working, and slowly takes off her clothes.