Maki, a wife who has been married to her husband for 15 years, has not been unhappy, but feels something like loneliness in her monotonous married life, like repeating the same thing every day. With sex with her husband gone, she began to question her life as she continued to age. One day, Maki gets acquainted with her husband's subordinate, Ikeda, and gradually becomes a man-woman relationship. Even though she feels guilty about her husband, she is addicted to the pleasure of sex for the first time in a long time.
