K-League 2 is the second tier of professional football in South Korea, operating under the Korea Football Association. Established in 2013, it features clubs that compete for promotion to the top division, K-League 1. The league typically consists of 10 to 12 teams, playing a regular season followed by a promotion playoff. Clubs in K-League 2 aim to develop talent and enhance their performance, contributing to the overall growth of football in South Korea.