Liebe Faust is a key character in the anime and manga series Black Clover. He is a low-ranking devil who was cast out of the underworld and ended up in the human world. Despite his origins, Liebe harbors a deep hatred for devils due to the suffering they caused him and his adoptive mother. He eventually forms a contract with Asta, becoming his anti-magic devil partner, and plays a crucial role in Asta's development and the fight against higher-ranking devils.