Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2018 |  | Kazuma Watanabe | FW |  | Vissel Kobe | Vissel Kobe |
| 07/2018 | | Kosuke Onose | MF |  | Renofa Yamaguchi | Renofa Yamaguchi |
| 07/2018 | | Tsuneyasu Miyamoto | MA |  | Gamba Osaka II | Gamba Osaka II |
| 03/2018 |  | Matheus Jesus | MF |  | Santos FC | Santos FC |
| 01/2018 | | Riku Matsuda | DF | |||
| 01/2018 | | Takaharu Nishino | DF |  | JEF United Chiba | JEF United |
| 01/2018 | | Shunya Suganuma | DF |  | Montedio Yamagata | Montedio Yamagata |
| 01/2018 | | Tatsuya Yamaguchi | DF | |||
| 01/2018 | | Yuya Fukuda | MF | |||
| 01/2018 | | Ren Shibamoto | MF | | Gamba Osaka II | Gamba Osaka II |
| 01/2018 | | Leo Takae | MF | | Gamba Osaka II | Gamba Osaka II |
| 01/2018 | | Shinya Yajima | MF |  | Urawa Red Diamonds | Red Diamonds |
| 01/2018 | | Keito Nakamura | FW |  | Mitsubishi Yowa | Mitsubishi Yowa |
| 01/2018 | | Haruto Shirai | FW | | Gamba Osaka II | Gamba Osaka II |
| 01/2018 | | Lévir Culpi | MA | |||
| 01/2018 | | Satoshi Yamaguchi | AS-CO | |||
| 01/2018 | | Naoki Matsuyo | GK-CO |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2018 | | Shun Nagasawa | FW | | Vissel Kobe | Vissel Kobe |
| 08/2018 | | Matheus Jesus | MF |  | Portimonense SC | Portimonense SC |
| 07/2018 | | Shinya Yajima | MF |  | Vegalta Sendai | Vegalta Sendai |
| 07/2018 | | Jin Izumisawa | MF |  | Tokyo Verdy | Verdy |
| 02/2018 |  | Soo-yong Bae | DF |  | Giravanz Kitakyushu | Giravanz Kitakyushu |
| 02/2018 | | Shuhei Akasaki | FW |  | Kawasaki Frontale | Frontale |
| 01/2018 | | Shota Yomesaka | MF |  | Iwate Grulla Morioka | Grulla Morioka |
| 01/2018 | | So Hirao | DF |  | Avispa Fukuoka | Avispa |
| 01/2018 |  | Jung-ya Kim | DF | | Vegalta Sendai | Vegalta Sendai |
| 01/2018 | | Yosuke Ideguchi | MF |  | Leeds United | Leeds Utd |
| 01/2018 | | Shogo Nakahara | MF |  | V-Varen Nagasaki | V-Varen |
| 01/2018 | | Hiroto Goya | FW |  | Tokushima Vortis | Tokushima Vortis |
| 01/2018 | | Kenta Hasegawa | MA |  | FC Tokyo | FC Tokyo |