Okitegami Kyouko no Chousenjou
| Volume Title | Okitegami Kyouko no Chousenjou |
| Japanese Volume Title | 掟上今日子の挑戦状 |
| Light Novel | Boukyaku Tantei Series |
| Publisher | Kodansha |
| Light Novel Label | Kodansha BOX |
| Author | Nisio Isin |
| Illustrator | VOFAN |
| Volume | 3 |
| Release Date | August 19, 2015 |
| Pages | 290 |
| ISBN-10 | 406219712X |
| ISBN-13 | 978-4062197120 |
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