Vermeil is a tall and curvaceous woman with shoulder length violet hair, deep vermilion eyes, horns, a spade-shaped tail, small fangs and pointy ears. She can conceal her non-human aspects at will so as to disguise herself as a human. She usually wears a short black one-piece dress (originally Alto's sister's). Her huge breasts are perhaps her most obvious feature, and she is quite proud of them.