[4] Between 2020 and 2022, the club reached its peak so far, having finished two seasons as league runners-up, and qualified for the Emperor's Cup twice in the period.

In the following year, the club once again failed to win an Emperor's Cup match, losing against Mitsubishi Mizushima FC, also from the Chugoku region, on the first round of the competition.

[6] In 2023, Baleine qualified for the Emperor's Cup, winning their qualification as Yamaguchi representatives on 23 April, after beating Shunan University in the prefectural preliminaries' Final.

[8] In the first round they defeated J3 League team Gainare Tottori in a tense penalty shoot-out by 4-3, with scores level at 1-1 after playing 120 minutes.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.