StadiumStadion Kosei
| Current capacity of the stadium |
| Standing | 14 500 |
| Seats | 9 100 |
| Tribune | 5 400 |
| Seats for sponsors | 200 |
| Fans attended |
| 4. 4. 2026 | Kosei- Tomioka | 5 664 |
| 30. 3. 2026 | Kosei- Minakami | 6 382 |
| 26. 3. 2026 | Kosei- Futtsu | 9 888 |
| 21. 3. 2026 | Kosei- Yamatokoriyama | 12 885 |
| 18. 3. 2026 | Kosei-Horasan | 15 464 |
| 16. 3. 2026 | Kosei-Kawasaki Frontale | 11 819 |
| 12. 3. 2026 | Kosei-Utsunomiya | 7 343 |
| 7. 3. 2026 | Kosei- Oga | 7 220 |
| 5. 3. 2026 | Kosei- Komatsu | 7 600 |