Based on the serial manga by Jun Mayuzuki.
Akira Tachibana is a 17-year-old high school student. She was once a promising athlete, but an injury has prevented her from taking part in track and field. One day, Akira Tachibana goes to a family restaurant and meets the manager. He is 45-year-old Masami Kondo and he divorced with a child. Akira Tachibana falls in love with him.