Ko Sang-Sik is in his 40's and still single. He works as the environmental facility section chief at city hall. Ko Sang-Sik becomes involved with Kang Min-Joo. She is also in her 40's and still single. She works as a PD at a broadcasting station.

Chiaki Yoshino is a TV producer. She is 45-years-old and single. Chiaki Yoshino worries about her health and her later years rather than dating. She hopes to buy an old house and live there with a friend when she gets older.

Chiaki then goes to Kamakura, Japan to look for a house. There, she meets a 50-year-old single man Wahei Nagakura. Wahei's first wife died and he has one child. Their love story begins ...