Krush 126 took place on June 25, 2021, at Korakuen Hall in Tokyo, Japan. In the main event, Takahito Niimi faced Keito Okajima. The card also featured Kazuki Yamagiwa versus Ayinta Ali and Takahiro versus Yuta Kunieda.
| Actor | Role |
|---|---|
| TTakahito NiimiSelf | Self |
| KKeito OkajimaSelf | Self |
| KKazuki YamagiwaSelf | Self |
| AAli AyintaSelf | Self |
| TTakahiroSelf | Self |
| YYuta KuniedaSelf | Self |
| FFumiyaSelf | Self |
| KKentaSelf | Self |
| KKazuki SagegamiSelf | Self |
| YYuki YasukawaSelf | Self |
| SShu InagakiSelf | Self |
| TTakuma TsukamotoSelf | Self |
| MMasamiSelf | Self |
| KKeito WeerasakreckSelf | Self |
| JJunpei SanoSelf | Self |
| SShota MeguroSelf | Self |
| YYashazaruSelf | Self |
| NNaoki MoritaSelf | Self |
| DDainaSelf | Self |
| RReitoSelf | Self |