Viola was found in the woods as a baby, and was taken in by Alyssa as Viola has an abnormal amount of magic for a human, and was unable to control it in infancy.
She is extremely defensive of her "mama", going so far as to reject certain familiars because they would "take Mama's love away" from her. Her personality is that of a spoiled child.
Viola is only 16 despite her appearance, and Alyssa is often mistaken as her apprentice.