The No-Name Grimoire (
Mai Natsume is currently fused with the Grimoire as a Remix Heart. It was originally in the library of the Hazuki estate before Mai stumbled across it. The Grimoire can only inhabit the body of a woman, so it changed her body from a man's to a woman's. When being used, Mai becomes much stronger and faster, her pupils becoming white rectangles.
- BlazBlue: Remix Heart, Chapter 02
- BlazBlue: Remix Heart, Chapter 22