The female lead protagonist. The 43rd ruler of the Demon World and the youngest to rule by demon standards, she is a powerful sorceress but has no experience in battle. Wise and smart, her vast knowledge comes from the "Exterior Library", a hidden dimension where knowledge of the past and future is kept and where her clan lived. Despite her knowledge, she is considered incompetent by the warmongering demon clans. Seeing what would happen to the war if it didn't end without the problems that it cause fixed, she awaited the arrival of the Hero so she could ask for his help to end war the right way. After finally getting him as her ally, she and the Hero travel to the Human world where she takes the identity of the "Crimson Scholar", a human noble who has come to help the lower classes.
