Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2018 |  | Juanma Lillo | MA | |||
| 10/2018 | | Iñigo Domínguez | AS-CO | |||
| 09/2018 |  | Kenshin Yoshimaru | GK |  | Tokushima Vortis | Tokushima Vortis |
| 08/2018 | | Shun Nagasawa | FW |  | Gamba Osaka | Gamba |
| 08/2018 |  | Ahmed Yasser | DF |  | Al Duhail SC | Al Duhail |
| 08/2018 | | Kyōgo Furuhashi | FW |  | FC Gifu | FC Gifu |
| 07/2018 | | Leo Osaki | DF | | Tokushima Vortis | Tokushima Vortis |
| 07/2018 | | Iniesta | MF |  | FC Barcelona | Barcelona |
| 04/2018 | | Kentaro Hayashi | AS-CO | |||
| 01/2018 |  | Woo-Young Jung | MF |  | Chongqing Liangjiang Athletic | Chongqing |
| 01/2018 | | Kota Ogi | GK |  | Nagoya Grampus | Nagoya Grampus |
| 01/2018 |  | Theeratorn Bunmatan | DF |  | Muangthong United | Muangthong Utd |
| 01/2018 | | Yuki Kobayashi | DF |  | Vissel Kobe U18 | U18 |
| 01/2018 | | Daiki Miya | DF |  | Biwako Seikei College | Biwako Seikei College |
| 01/2018 | | Daisuke Nasu | DF |  | Urawa Red Diamonds | Red Diamonds |
| 01/2018 | | Yuta Goke | MF | |||
| 01/2018 | | Asahi Masuyama | MF |  | Yokohama FC | Yokohama FC |
| 01/2018 | | Hirotaka Mita | MF |  | Vegalta Sendai | Vegalta Sendai |
| 01/2018 | | Tatsuki Noda | MF |  | FC Imabari | FC Imabari |
| 01/2018 | | Daiju Sasaki | MF | | Vissel Kobe U18 | U18 |
| 01/2018 |  | Wellington | FW |  | Avispa Fukuoka | Avispa |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2018 | | Yuya Nakasaka | MF |  | CF Peralada | CF Peralada |
| 09/2018 | | Daiju Sasaki | MF |  | Palmeiras U20 | U20 |
| 08/2018 | | Kazuma Watanabe | FW | | Gamba Osaka | Gamba |
| 08/2018 | | Kenshin Yoshimaru | GK | | Tokushima Vortis | Tokushima Vortis |
| 07/2018 | | Mike Havenaar | FW | | Vegalta Sendai | Vegalta Sendai |
| 07/2018 | | Leandro | FW |  | Tokyo Verdy | Verdy |
| 07/2018 | | Keijiro Ogawa | FW |  | Shonan Bellmare | Shonan Bellmare |
| 07/2018 | | Woo-Young Jung | MF |  | Al Sadd | Al Sadd |
| 02/2018 | | Shinji Yamaguchi | DF |  | Oita Trinita | Oita Trinita |
| 02/2018 | | Hideo Tanaka | MF |  | Tegevajaro Miyazaki | Tegevajaro Miyazaki |
| 01/2018 | | Hideto Takahashi | MF |  | Sagan Tosu | Sagan |
| 01/2018 | | Wescley | MF |  | Ceará - CE | Ceará SC |
| 01/2018 | | Kenta Tokushige | GK |  | V-Varen Nagasaki | V-Varen |
| 01/2018 | | Junya Higashi | DF |  | Fukushima United | Fukushima United |
| 01/2018 | | Takuya Iwanami | DF | | Urawa Red Diamonds | Red Diamonds |
| 01/2018 | | Seigo Kobayashi | MF |  | Montedio Yamagata | Montedio Yamagata |
| 01/2018 | | Nílton | MF |  | Bahia - BA | Bahia |
| 01/2018 | | Kotaro Omori | MF |  | FC Tokyo | FC Tokyo |