Cassia is the wife of the Duke of Harz Duchy.
Cassia is a beautiful woman with white skin, bright golden hair, pink lips and large faintly colored blue eyes.
She is described as steps above even other female elves in beauty.
Cassia is a thoughtful person who wishes the best for the people close to her. She is also a determined person who will follow what she believes is right, no matter the consequences.
Cassia came from the family of the Earl of Selmar. She was engaged and later married to the Duke of Harz.
She first appears by introducing herself as Brocken's wife.
Cassia is a capable fighter as she is a Lv41 Wizard, and regularly enters labyrinths.
Cassia cares for her family, but is willing to put the duty of being a noble first before any of her relatives.
Cassia cares for Rutina and wishes the best for her after the latter becomes Michio's slave.