Yui, a housewife who feels unsatisfied with her ordinary life. Her relationship with her husband has cooled down and she has almost no night activities. One day, a friend asked me if I would like to work part-time as a housekeeper at the house of an artist I knew. She was hired immediately, but she was concerned about the fact that beautiful women were visiting every day. And Yui, who has removed the work room that was forbidden to enter, witnessed the appearance of a woman who was tied up with a rope and writhing in pleasure.