I.N , Felix, Hyunjin, and Bang Chan are part of a tight-knit gang called "Golden Boys," which has a strong sense of camaraderie and a shared goal of being the top of their respective fields.Golden Boys' members have completely different personalities and skill sets - I.N is the quiet, introspective type; Felix is the smooth-talkers, and Hyunjin and Bang Chan are the tough guys who aren't afraid to get their hands dirty. Together, they make an unbeatable team and their bond is stronger than ever.