K League 3 is the third tier of professional football in South Korea, established in 2020. It serves as a developmental league for clubs aspiring to reach the higher levels of the K League, which consists of the top two divisions: K League 1 and K League 2. The league features a mix of semi-professional and professional teams, providing opportunities for players to gain experience and showcase their talent. Each season, clubs compete for promotion to K League 2, making it an important stepping stone in South Korean football.