Gangwon FC became the first club to enter the K4 League with reserve team.
[2] Icheon Citizen was disbanded due to financial problems, while four newly-founded teams Dangjin Citizen, Geoje Citizen, Pyeongchang United (successor to K3 League Basic team Pyeongchang FC) and Gangwon FC B joined the league.
The top two teams were directly promoted to the K3 League, and the third and fourth-placed teams qualified for the promotion play-off.
When the match was finished as a draw, its winners were decided on the regular season rankings without extra time and penalty shoot-out.
This article about a South Korean football competition is a stub.