Director of the Sponheim Abbey, and acquaintance of Araya and Tōko. They were on good terms until the day Cornelius came to the realization that Tōko was a better Mage than he was. Even though he was popularly considered a better Mage than her, he became so obsessed with this inferiority complex that he occasionally becomes deranged when speaking of her. He joined up with Araya not because of the latter's goals, but solely in order to kill Tōko to prove his superiority. Though he is naturally more powerful than both Araya and Tōko, he is blinded by his arrogance and is not nearly as versatile as they are. He used several spells in the novel, including one that had power equivalent to a Noble Phantasm, but none of them made an appearance in the movie.