Shizuka, an active teacher who works at a school in Tokyo. Although she is married, she is admired by both students and fellow teachers in the school. But she had been sexless for years. And she calls the students she likes after school and seduces them... Akiko has been blessed with two sons and has lived a life without any inconvenience. My sons are also independent and feel lonely in the state of having too much free time, so they start dating. At first, it was fun just to chat, but gradually I became attracted to the person I was talking to, and eventually we decided to meet.