She is the Warlock.

Dark clouds filled the sky to the west and, the sun was blurred by haze. Thunderstorms were coming and it was strange that the wind hadn't picked up. There was a feeling that doomsday was near but Arya didn't care about that. She squatted down near the eaves of one of the rooftops in the city of Teosopolis. Next to her sat a golden eagle, her familiar and calmly watching the city together with her. Follow Arya and her friends in a world that is falling apart. Demons, monsters, and the undead are invading the human world. ------ (In this world, a man or woman cannot create magic on their own; they need each other. In order for a man to use magic, he needs Yin runes that can only be created by women, just as women need Yang runes that can only be created by men.)