Kaibutsu Ouji no Itoshii Majo

Elisha, a sorceress who served a count's family, is banished one day for a crime she didn't commit. Wandering aimlessly, she finally collapses and is rescued by a father and son. She awakens in the castle of Duke Leroy, known as the "Monster Duke." At the father and son's request, Elisha agrees to break the castle's curse, but Leroy despises sorcerers— This is a love story in which the encounter between a lonely sorceress and a cursed prince changes destiny.