7th 9
| Volume Title | 7th 9 |
| Japanese Volume Title | セブンス 9 |
| Light Novel | 7th |
| Volume | 9 |
| Release Date | January 31, 2020 |
| Pages | 312 |
| ISBN-10 | 4074422298 |
| ISBN-13 | 978-4074422296 |
| Online Shops |
| Volume Title | 7th 9 |
| Japanese Volume Title | セブンス 9 |
| Light Novel | 7th |
| Volume | 9 |
| Release Date | January 31, 2020 |
| Pages | 312 |
| ISBN-10 | 4074422298 |
| ISBN-13 | 978-4074422296 |
| Online Shops |