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. After dying during the Great Conquest 14 years before the story began, Wilhelm vowed to avenge her by killing the White Whale, which he does in Arc 3. Unbeknownst to everyone, though, the Wit...