Abyss Dancer

She is known as the person who used to be known as "The Shadow of the Smiling Man" Her Real name is Roxanne, she was Engen's right arm during the Great War when he was the King of Nera. However they were defeated by the iron witch and she fell into despair while engen kept fighting, leading to her deserting and abandoning him. Engen still trusts Roxanne, but now as a tool rather than a comrade. He expects her to sacrifice herself and her life for his goal during this war. With Sanjiva she transforms into into a black serpent which can shoot red blades.