Toaru Hikuushi e no Seiyaku 9
| Volume Title | Toaru Hikuushi e no Seiyaku 9 |
| Japanese Volume Title | とある飛空士への誓約 9 |
| Light Novel | Toaru Hikuushi e no Seiyaku |
| Publisher | Shogakukan |
| Light Novel Label | Gagaga Bunko |
| Author | Koroku Inumura |
| Illustrator | Haruyuki Morisawa |
| Target Readership | Male |
| Volume | 9 |
| Release Date | November 18, 2015 |
| Pages | 520 |
| ISBN-10 | 4094515828 |
| ISBN-13 | 978-4094515824 |
| Height (cm) | 14.80 |
| Width (cm) | 10.50 |
| Thickness (cm) | 2.00 |
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