Tamayo is a gentle, wise, and incredibly intelligent individual. Having devoted most of her life the researching of demons and human transformation into one, she was one of the most knowledgeable individuals to be shown. Despite the generally antagonistic and virulent relationship between humanity and demons, she shows a great deal of kindness towards humans. Tamayo is a petite young woman with long, dark brown hair, parted in the center and worn braided back into a large, low bun.