Bok Hee is a girl who studies very hard and works at a brewery. When she was 5-years-old, her parents' divorced and Bok Hee then lived with her mother. Her father died in a coal mine accident.
Bok Hee came to brewery company Dukchun with her younger stepbrother after her mother married Song Byung-Man, the owner of Dukchun. Bok Hee addresses her mother as "aunt," to avoid getting her mother into trouble. Finally, people learn that Bok Hee is the daughter. Her stepbrother is sent off to an orphanage and Bok Hee leaves for Seoul.
Joon Mo worked as a stuntman, but due to injury had to quit his job and come to Dukchun to work as a temporary teacher. Joon Mo meets Bok Hee for the first time when she peers through a classroom window in which he teaches. Joon Mo sees the passion in her eyes and becomes her mentor.