Kono Sekai ga Game da to Ore dake ga Shitteiru 9
| Volume Title | Kono Sekai ga Game da to Ore dake ga Shitteiru 9 |
| Japanese Volume Title | この世界がゲームだと俺だけが知っている９ |
| Light Novel | Kono Sekai ga Game da to Ore dake ga Shitteiru |
| Publisher | Enterbrain |
| Author | Usbar |
| Illustrator | Ichizen |
| Volume | 9 |
| Release Date | April 05, 2018 |
| Pages | 520 |
| ISBN-10 | 4047350818 |
| ISBN-13 | 978-4047350816 |
| Height (cm) | 18.00 |
| Width (cm) | 13.00 |
| Thickness (cm) | 3.40 |
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