Megumi is a 28-year-old married woman who has been married for three years. Her husband is a 30-year-old salaryman, and they live together as an ordinary couple. They celebrate their wedding anniversary together and carefully maintain their relationship. However, her husband has low sexual desire, and they have sex only about once every few months. Although she never cheated before marriage, she has had affairs with three men since getting married, through which she has discovered the allure of being a mature woman. When meeting friends, she removes her wedding ring and speaks her true feelings. Sex with her husband is solely for conceiving children, and they normally don't use condoms. Despite everything, she values her own emotions and continues living true to herself.