Revenge, of The Demon-Human Darius

Darius Lindon a man who had no distinct childhood memories, spent most of his life serving Mistress Isabelle as one her most reliable captains, where she is known as one of the six great generals under Demon King Lucious. Darius is tasked to kill Claire Tromair one of the human's great heroes, a warrioress that excels in both swordmanship and magic, but things aren't as they seem when he confronts her.