Humming (A Lover's Concerto)

Jun-seo and Mi-yeon have been dating for a long time. Jun-seo grows tired of his girlfriend's unfailing love, and volunteers to do research work in Antartica. One day, Mi-yeon visits him but he runs away, only to find out that she had been injured in a car accident the day before. Did she really come to meet him after falling into a coma? Jun-seo realizes her love and preciousness by retracing her steps.