Hero is currently studying to be a doctor in college, while his girlfriend, Mari, is a pianist who studies music. Hero and Mari are both 19. Hero has a younger brother called Kel who is currently living in Faraway, same with Mari's younger brother, Sunny. Hero and Mari sometimes play the piano together if they have free time but not often. Hero and Mari met when they were 10. Kel and Sunny are 4 years younger then Mari and Hero, meaning they're 16.