Grimoires were created by Nine during the Great Dark War. The World Void Information Controlling Organization manages them, meaning they have a sort of monopoly on it; because of their control of Grimoires, they earned the monkier of the "Library".
Despite their name, Grimoires don't appear as books, generally speaking, and can appear as a multitude of different objects, the Truth Grimoire appearing as a hand-held mirror, for example. The most infamous and powerful Grimoire of them all is the Blue Grimoire, which can tap into the power of the Blue.
Grimoires vary by rank, their power depends on the degree of melting.
The list of Grimoires are as follows:
- Blue Grimoire (BlazBlue)
- Bleu Grimoire (BlazBlue)
- Compensation Grimoire
- Conversion Grimoire
- Crimson Grimoire (Burning Red)
- Evolution Grimoire (Edit Evolution)
- Intermediary Grimoire
- New Testament Grimoire (Idiot Drive)
- Original Grimoire (Grimoire)
- Phantom Grimoire (Phantom Memory)
- Pure Grimoire (No Name)
- Pursuit Grimoire
- Regulation Grimoire
- Trance Grimoire
- Truth Grimoire (Ammit Clearth)
- Will Having Grimoire