Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2021 |  | Tetsuhiro Kina | MA | |||
| 08/2021 |  | Vinícius | FW |  | Nacional - SP | Nacional |
| 07/2021 | | Takashi Kanai | DF |  | Ventforet Kofu | Ventforet |
| 07/2021 | | Hidetoshi Takeda | MF |  | Urawa Red Diamonds | Red Diamonds |
| 02/2021 |  | Sittichok Paso | FW |  | Chonburi FC | Chonburi FC |
| 02/2021 | | Yusuke Murase | DF | |||
| 02/2021 | | Ramón | MF |  | Gainare Tottori | Gainare Tottori |
| 02/2021 | | Sho Sawada | MF | |||
| 02/2021 | | Kazaki Nakagawa | FW |  | Kyoto Sanga FC | Kyoto |
| 01/2021 | | Shingo Akamine | FW |  | Fagiano Okayama | Fagiano Okayama |
| 01/2021 | | Koki Kiyotake | MF |  | Tokushima Vortis | Tokushima Vortis |
| 01/2021 | | Shintaro Shimizu | FW | | Fagiano Okayama | Fagiano Okayama |
| 01/2021 | | Reo Yamashita | DF |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2021 | | Takuya Hitomi | FW |  | AC Nagano Parceiro | Nagano Parceiro |
| 01/2021 | | Shuto Kawai | MF |  | Matsumoto Yamaga | Matsumoto Yamaga |
| 01/2021 | | Shinji Ono | MF |  | Hokkaido Consadole Sapporo | Consadole |
| 01/2021 | | Kazuki Yamaguchi | FW | | AC Nagano Parceiro | Nagano Parceiro |
| 01/2021 | | Daisei Suzuki | DF | | Tokushima Vortis | Tokushima Vortis |
| 01/2021 | | Yoshio Koizumi | MF | | Urawa Red Diamonds | Red Diamonds |