Chang Yun

Mi-na is a high school student living alone with her mother, dreams of having the perfect boyfriend. But can any man hope to live up to her image of the ideal partner? (imdb)

Young-sae was one of the best dancers in Korea, as we witness in the opening to the film. He dances beautifully with his love and protégée Se-young in the middle of dance competition, until his rival Hyun-soo signals to two other dancers to "accidentally" knock Young-sae over and "mess up" his leg. Se-young later goes to dance with Hyun-soo and Young-sae spends his time a depressed wreck living in his messy apartment without a desire to dance. (kmovieaddicts.blogspot.com)