Yoon Dong-ha is a 25-year-old guy who runs a small errand center with his friend. Their store will do pretty much anything for a customer from dressing as Santa Claus to providing security for an idol star. Dong-ha seems happy-go-lucky, but he hides a secret sorrow, having lost his girlfriend to a fatal heart problem. Since her death, he's lost all his ambition and drive, with his career plans sidelined.