Nam Siheon is a high school student who dominates the popularity of female students with his good looks and active personality, but doesn't really care for it as he's already content with his close friend, Jung Ingyu, and waiting for the woman destined for him, even if he doesn't know who it is. He's playful, energetic, athletic, a bit cocky, and surprisingly exceeds at school subjects, getting good grades despite cramming and playing around before exams.