Speed

Choo-won, Goo-rim, Dae-sung, and Seo-won were high school friends who turn into 21 years old. After they left school because of the conflict with teachers, they made it a not-so-miserable life: a track athlete, singer, aspiring movie director, and medical student. On Seo-won's birthday, the three friends give him a special present. And on that day, Seo-won meets a girl who might change his fate.