Liebe

The anti-magic devil living in the five-leaf grimoire: born without magic in the Underworld's first level, exactly like Asta in the Clover Kingdom.

Driven out of the Underworld for having no magic, Liebe ends up in the human world and is taken in by a woman, Licita, who raises him as a son — until Lucifero kills her using Liebe's own body. From that day his only purpose is revenge. The pact with Asta is not forced on him: he chooses it, and it becomes the series' only Devil Union between equals.