After 2015 season Seoul FC Martyrs joined the league , but three new teams Buyeo FC , Siheung Citizen , and Yangpyeong FC left it . After 2015 season Seoul FC Martyrs joined the league , but three new teams Buyeo FC , Siheung Citizen and Yangpyeong FC left them .
Selepas musim 2015 Seoul FC Martyrs menyertai liga, tetapi tiga pasukan baru Buyeo FC, Siheung Citizen, dan Yangpyeong FC meninggalkannya. Selepas musim 2015 Seoul FC Martyrs menyertai liga, tetapi tiga pasukan baru Buyeo FC, Siheung Citizen dan Yangpyeong FC meninggalkan mereka.