Vivi has a black face and large, yellow eyes. He wears a large, pointed tan hat, a blue jacket, green-and-white striped trousers, red-and-white gloves, and brown boots. He is a black mage, distinguished from humans by a dark aura surrounding his visible outer skin, glowing yellow eyes, and the ability to cast magic. At first, Vivi appears to be gullible, clumsy, and shy, often stumbling over his speech and lacking self-confidence. He is fearful of his powers, his origins, and his own lifespan. Over time, he gains bravery and confidence, as well as a strong sense of right and wrong.