Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2025 |  | Tae-wook Jeong | DF |  | Jeonbuk FC | Jeonbuk |
| 07/2025 | | Seong-hoon Cheon | FW |  | Daejeon Hana Citizen | Daejeon |
| 07/2025 | | Ji-won Kim | MF |  | Yangpyeong FC | Yangpyeong FC |
| 07/2025 |  | Anderson Oliveira | FW |  | Suwon FC | Suwon FC |
| 06/2025 | | Su-il Park | DF |  | Gimcheon Sangmu | Gimcheon Sangmu |
| 06/2025 |  | Patryk Klimala | FW |  | Sydney FC | Sydney FC |
| 02/2025 |  | Marko Dugandžić | FW |  | Al Tai | Al Tai |
| 01/2025 | | Joon-seob Im | GK |  | Jeju SK FC | Jeju SK FC |
| 01/2025 | | Jin-su Kim | DF | | Jeonbuk FC | Jeonbuk |
| 01/2025 | | Han-do Lee | MF |  | Busan IPark | Busan IPark |
| 01/2025 | | Seon-min Moon | MF | | Jeonbuk FC | Jeonbuk |
| 01/2025 | | Seung-won Jeong | FW | | Suwon FC | Suwon FC |
| 01/2025 |  | Gbato Samuel | FW |  | FC Seoul U18 | U18 |
| 01/2025 | | Ki-wook Yun | GK | | FC Seoul U18 | U18 |
| 01/2025 | | Jae-min Ahn | DF |  | Gimpo FC | Gimpo FC |
| 01/2025 | | Young-kwang Cho | DF |  | FC Osaka | FC Osaka |
| 01/2025 | | Jun-yeong Choi | DF |  | Seongnam FC | Seongnam FC |
| 01/2025 | | Shi-yeong Lee | DF |  | Suwon Bluewings | Suwon |
| 01/2025 | | Ji-man Ahn | MF |  | Yeoju FC | Yeoju FC |
| 01/2025 |  | Aleksandar Paločević | MF |  | OFK Beograd | OFK Beograd |
| 01/2025 | | Dong-jin Park | MF |  | Gyeongnam FC | Gyeongnam FC |
| 01/2025 | | Han-min Jung | FW |  | Gangwon FC | Gangwon FC |
| 01/2025 | | Shin-jin Kim | FW |  | Seoul E-Land FC | Seoul E-Land FC |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 11/2025 | | Ju-hyeok Kang | MF | | Gimcheon Sangmu | Gimcheon Sangmu |
| 07/2025 | | Ju-sung Kim | DF |  | Sanfrecce Hiroshima | Sanfrecce |
| 07/2025 | | Seong-jin Kang | FW | | Suwon Bluewings | Suwon |
| 07/2025 | | Shin-jin Kim | FW | | Gangwon FC | Gangwon FC |
| 07/2025 | | Willyan | MF | | Suwon FC | Suwon FC |
| 07/2025 | | Shi-yeong Lee | DF | | Suwon FC | Suwon FC |
| 07/2025 | | Sung-yueng Ki | MF |  | Pohang Steelers | Pohang Steelers |
| 06/2025 | | Jin-ya Kim | MF | | Daejeon Hana Citizen | Daejeon |
| 04/2025 | | Jong-beom Baek | GK | | Gimcheon Sangmu | Gimcheon Sangmu |
| 03/2025 | | Jae-min Ahn | DF |  | Jeonnam Dragons | Jeonnam Dragons |
| 03/2025 | | Sun-woo Ham | DF |  | Hwaseong FC | Hwaseong FC |
| 02/2025 | | Aleksandar Paločević | MF |  | Nantong Zhiyun | Nantong Zhiyun |
| 02/2025 | | Sang-hoon Paik | MF |  | Dangjin Citizen FC | Dangjin Citizen FC |
| 01/2025 | | Ji-man Ahn | MF | | Hwaseong FC | Hwaseong FC |
| 01/2025 | | Seong-min Hwang | GK |  | Incheon United | Incheon United |
| 01/2025 | | Jong-gyu Yoon | DF |  | Ulsan HD FC | Ulsan HD FC |
| 01/2025 | | Sang-woo Kang | MF | | Ulsan HD FC | Ulsan HD FC |
| 01/2025 | | Dong-jin Park | MF | | Jeju SK FC | Jeju SK FC |
| 01/2025 |  | Stanislav Iljutcenko | FW | | Suwon Bluewings | Suwon |
| 01/2025 | | Wan-kyu Kwon | DF | | Suwon Bluewings | Suwon |
| 01/2025 |  | Ronaldo | FW |  | Estrela Amadora | Amadora |