Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 12/2020 |  | Rio Omori | DF |  | FC Tokyo U18 | U18 |
| 12/2020 | | Ko Shimura | GK |  | Júbilo Iwata | Júbilo Iwata |
| 10/2020 | | Makoto Okazaki | DF |  | Shimizu S-Pulse | S-Pulse |
| 09/2020 | | Sodai Hasukawa | DF |  | Meiji University FC | Meiji University FC |
| 03/2020 |  | Chayathorn Tapsuvanavon | MF | |||
| 01/2020 |  | Joan Oumari | DF |  | Vissel Kobe | Vissel Kobe |
| 01/2020 |  | Adaílton | FW | | Júbilo Iwata | Júbilo Iwata |
| 01/2020 | | Riku Hirosue | GK |  | Renofa Yamaguchi | Renofa Yamaguchi |
| 01/2020 | | Taishi Nozawa | GK |  | FC Tokyo II | FC Tokyo II |
| 01/2020 | | Seiji Kimura | DF | | FC Tokyo U18 | U18 |
| 01/2020 | | Takahiro Yanagi | DF |  | Montedio Yamagata | Montedio Yamagata |
| 01/2020 | | Rei Hirakawa | MF |  | Kagoshima United | Kagoshima |
| 01/2020 | | Leandro | FW |  | Kashima Antlers | Kashima Antlers |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2020 | | Yoshitake Suzuki | MF |  | Mito HollyHock | Mito HollyHock |
| 08/2020 | | Sei Muroya | DF |  | Hannover 96 | Hannover |
| 07/2020 | | Kento Hashimoto | MF |  | FK Rostov | FK Rostov |
| 07/2020 | | Chayathorn Tapsuvanavon | MF |  | Bangkok United | Bangkok United |
| 06/2020 |  | Sang-ho Na | FW |  | Seongnam FC | Seongnam FC |
| 04/2020 | | Teppei Oka | DF | | Meiji University FC | Meiji University FC |
| 02/2020 | | Takahiro Yanagi | DF |  | Vegalta Sendai | Vegalta Sendai |
| 02/2020 | | Riku Hirosue | GK |  | FC Machida Zelvia | Machida Zelvia |
| 02/2020 | | Jael | FW |  | Matsumoto Yamaga | Matsumoto Yamaga |
| 01/2020 | | Kotaro Omori | MF | | Júbilo Iwata | Júbilo Iwata |
| 01/2020 | | In-soo Yu | MF | | Seongnam FC | Seongnam FC |
| 01/2020 | | Jae-suk Oh | DF |  | Gamba Osaka | Gamba |
| 01/2020 | | Makoto Okazaki | DF | | Shimizu S-Pulse | S-Pulse |
| 01/2020 | | Nattawut Suksum | FW | | Bangkok United | Bangkok United |