They were promoted to the 2022 J2 League alongside Iwate Grulla Morioka.
Iwate team won promotion for the J2 League for the first time.
After two separate stints involving youth clubs in this division.
FC Tokyo U-23 pulled out of the competition prior to the start of the 2020 season.
[1] Blaublitz Akita and SC Sagamihara were promoted to J2 League, the later being the last club from the original clubs which started the maiden season in 2014 to be promoted from the third division.