Krush 124 took place on April 23, 2021, at Korakuen Hall in Tokyo, Japan. In the main event, Kona Kato faced Riki Matsuoka. The card also featured Mahiro versus Kotomi and Ruku versus Yuta Saito.
| Actor | Role |
|---|---|
| KKona KatoSelf | Self |
| RRiki MatsuokaSelf | Self |
| MMahiroSelf | Self |
| KKotomiSelf | Self |
| RRukuSelf | Self |
| YYuta SaitoSelf | Self |
| FFumiyaSelf | Self |
| KKokiSelf | Self |
| SShinya UemuraSelf | Self |
| TTakumi NakahiraSelf | Self |
| JJinya YamauraSelf | Self |
| SShoyaSelf | Self |
| KKazuma KuboSelf | Self |
| RRikiSelf | Self |
| YYuzuki SatomiSelf | Self |
| TTsubasa HoriiSelf | Self |
| KKoya SaitoSelf | Self |
| MMark Bird JamesSelf | Self |