Mio Ichinose, who works as a nurse, is 29 years old, and still harbors feelings for Kazuki, her first love from high school. Mio, who was devoted to her work, was recommended by the director of the hospital for a matchmaking, and she decided to accept the marriage meeting in order to get rid of Kazuki from her thoughts. However, on the day of the arranged meeting, she encounters a traffic accident and there at the scene a mysterious doctor appears. When Mio is relieved and wants to thank him, the man turns out to be Kazuki himself..!