| 2. Round | 10/04/2021 | Otsu High School [U18] | - | Vissel Kobe [U18] | 1:0 | ||||
| 3. Round | 17/04/2021 | Kyoto Sanga FC [U18] | - | Otsu High School [U18] | 0:0 | ||||
| 4. Round | 25/04/2021 | Otsu High School [U18] | - | Júbilo Iwata [U18] | 2:1 | ||||
| 5. Round | 01/05/2021 | Sanfrecce Hiroshima [U18] | - | Otsu High School [U18] | 1:0 | ||||
| 8. Round | 27/06/2021 | Sagan Tosu [U18] | - | Otsu High School [U18] | 1:1 | ||||
| 9. Round | 04/07/2021 | Otsu High School [U18] | - | East Fukuoka High School [U18] | 1:0 | ||||
| 1. Round | 11/07/2021 | Cerezo Osaka [U18] | - | Otsu High School [U18] | 1:4 | ||||
| 14. Round | 09/10/2021 | Otsu High School [U18] | - | Sanfrecce Hiroshima [U18] | 1:0 | ||||
| 15. Round | 17/10/2021 | Nagoya Grampus [U18] | - | Otsu High School [U18] | 1:5 |  |
|||
| 17. Round | 28/11/2021 | Otsu High School [U18] | - | Sagan Tosu [U18] | 1:1 | ||||
| 10. Round | 02/12/2021 | Otsu High School [U18] | - | Cerezo Osaka [U18] | 2:3 | ||||
| 18. Round | 05/12/2021 | East Fukuoka High School [U18] | - | Otsu High School [U18] | 1:1 | ||||
| 13. Round | 11/12/2021 | Júbilo Iwata [U18] | - | Otsu High School [U18] | 2:1 | |
Japan