| Round of 16 | 15/02/2024 | Ulsan HD FC | - | Ventforet Kofu | 3:0 | ||||
| Round of 16 | 21/02/2024 | Ventforet Kofu | - | Ulsan HD FC | 1:2 |  |
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| Quarter-finals | 05/03/2024 | Jeonbuk FC | - | Ulsan HD FC | 1:1 | ||||
| Quarter-finals | 12/03/2024 | Ulsan HD FC | - | Jeonbuk FC | 1:0 | ||||
| Semi-finals | 17/04/2024 | Ulsan HD FC | - | Yokohama F. Marinos | 1:0 | ||||
| Semi-finals | 24/04/2024 | Yokohama F. Marinos | - | Ulsan HD FC | 5:4 pso |
South Korea