Escaping the King's Crusade

In a magical world where major historical nations continue to thrive under the rule of magic wielders known as magi who claim descent from historical dynasties, Minerva, a bisexual slave girl from the Angevin Empire, an oppressive theocratic monarchy ruled by the fundamentalist Church of Krystotheon, learns that she, herself, is a magus and finds herself caught in the cross-fire of a war between empires and must work together with her close friend Amira and her trans sister Elowyn to survive while discovering her true self.