Youjo Senki 12 Mundus vult decipi, ergo decipiatur
| Volume Title | Youjo Senki 12 Mundus vult decipi, ergo decipiatur |
| Japanese Volume Title | 幼女戦記 12 Mundus vult decipi, ergo decipiatur |
| Light Novel | Youjo Senki |
| Publisher | Enterbrain |
| Author | Carlo Zen |
| Illustrator | Shinobu Shinotsuki |
| Volume | 12 |
| Release Date | February 20, 2020 |
| Pages | 496 |
| ISBN-10 | 4047357340 |
| ISBN-13 | 978-4047357341 |
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