| 12. Round | 03/09/2023 | Maebashi Ikuei High School [U18] | - | Ryutsu Keizai University [U18] | 2:2 | ||||
| 13. Round | 10/09/2023 | Ryutsu Keizai University [U18] | - | Kawasaki Frontale [U18] | 0:1 | ||||
| 14. Round | 17/09/2023 | Shoshi High School [U18] | - | Ryutsu Keizai University [U18] | 2:1 | ||||
| 15. Round | 24/09/2023 | Ryutsu Keizai University [U18] | - | Aomori Yamada High School [U18] | 2:3 | ||||
| 16. Round | 30/09/2023 | Shohei High School [U18] | - | Ryutsu Keizai University [U18] | 1:3 |  |
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| 17. Round | 08/10/2023 | Asahikawa Business High School [U18] | - | Ryutsu Keizai University [U18] | 1:2 | ||||
| 18. Round | 15/10/2023 | Ryutsu Keizai University [U18] | - | Yokohama F. Marinos [U18] | 2:1 |  |
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| 19. Round | 22/10/2023 | Kashiwa Reysol [U18] | - | Ryutsu Keizai University [U18] | 4:0 | ||||
| 20. Round | 19/11/2023 | Omiya Ardija [U18] | - | Ryutsu Keizai University [U18] | 1:0 | ||||
| 21. Round | 26/11/2023 | Ryutsu Keizai University [U18] | - | FC Tokyo [U18] | 1:1 |
Japan