Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2020 |  | Yasuhito Endō | MF |  | Gamba Osaka | Gamba |
| 10/2020 | | Masakazu Suzuki | MA | |||
| 08/2020 | | Norimichi Yamamoto | DF |  | Yokohama F. Marinos | Marinos |
| 04/2020 | | Riku Morioka | DF |  | Hosei University FC | Hosei University FC |
| 02/2020 | | Hiroki Itō | DF |  | Nagoya Grampus | Nagoya Grampus |
| 02/2020 |  | Juan Forlín | DF | |||
| 02/2020 | | So Nakagawa | DF |  | Kashiwa Reysol | Kashiwa Reysol |
| 02/2020 | | Naoya Seita | MF | |||
| 02/2020 | | Naoto Miki | FW | |||
| 02/2020 | | Koki Ogawa | FW |  | Mito HollyHock | Mito HollyHock |
| 01/2020 |  | Lulinha | FW |  | Pafos FC | Pafos FC |
| 01/2020 | | Kotaro Omori | MF |  | FC Tokyo | FC Tokyo |
| 01/2020 | | Shun Obu | DF |  | Albirex Niigata | Albirex Niigata |
| 01/2020 | | Daichi Sugimoto | GK | | Yokohama F. Marinos | Marinos |
| 01/2020 | | Kakeru Funaki | DF |  | Cerezo Osaka | Cerezo |
| 01/2020 | | Ryoma Ishida | DF |  | Renofa Yamaguchi | Renofa Yamaguchi |
| 01/2020 | | Kaito Suzuki | DF |  | Júbilo Iwata U18 | U18 |
| 01/2020 | | Mahiro Yoshinaga | MF | |||
| 01/2020 | | Seiya Nakano | FW |  | Fagiano Okayama | Fagiano Okayama |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2020 | | Takeaki Harigaya | MF |  | Giravanz Kitakyushu | Giravanz Kitakyushu |
| 02/2020 | | Shohei Takahashi | DF |  | Tokyo Verdy | Verdy |
| 02/2020 | | Kentaro Moriya | MF |  | Ehime FC | Ehime FC |
| 01/2020 | | Kengo Kawamata | FW |  | JEF United Chiba | JEF United |
| 01/2020 | | Yoshito Okubo | FW | | Tokyo Verdy | Verdy |
| 01/2020 | | Ryo Shinzato | DF | | Gamba Osaka | Gamba |
| 01/2020 | | Shun Morishita | DF |  | Iwate Grulla Morioka | Grulla Morioka |
| 01/2020 | | Takuma Ominami | DF | | Kashiwa Reysol | Kashiwa Reysol |
| 01/2020 | | Daigo Araki | MF |  | Kyoto Sanga FC | Kyoto |
| 01/2020 | | Taishi Taguchi | MF | | JEF United Chiba | JEF United |
| 01/2020 | | Adaílton | FW | | FC Tokyo | FC Tokyo |
| 01/2020 | | Masato Nakayama | FW | | Mito HollyHock | Mito HollyHock |
| 01/2020 | | Yosuke Akiyama | MF | | Nagoya Grampus | Nagoya Grampus |