Two strangers have dropped their kids off at a pickup area for a children's camp in Helsinki, Finland. A spark of mutual interest is ignited between the man and woman.

Kyung-min is an English tutor who is often pressured by his lover Seon-hee about getting married. He starts giving lessons to a new student Young-won, a piano tutor, and they decide to exchange tutoring like barter. Unlike Seon-hee, she seems to be an untied person when it comes to relationships, which strongly attracts Kyung-min. But as he falls for her, he faces unexpected but familiar situations.

Film director Jung-woong visits the cafe run by Sung-cheol. Jung-woong talks about the script he is writing, and Sung-cheol talks about the events that had happened in his life. Jung-woong asks Sung-cheol if he can use Sung-cheol's experience in his film.

Describes a woman's emotions at a turning point in life - love, parting, and birth.