Theresia van Astrea

Theresia van Astrea was Wilhelm van Astrea's wife and the previous generation's Sword Saint who fought and single-handedly brought an end to the Demi-Human War roughly 40 years before the start of the main story. Though a minor character overall, she is pivotal to the character arcs of her relatives and later serves as a secondary antagonist in Arc 5. She also plays major roles in the Sword Demon Trilogy.