Mister Demi's white shoulder-length hair is accentuated by small black horns. Two pencils crown the top of his head along with black glasses. The left bang seems to resemble a keyboard. His white collared t-shirt has an eighth note in the center, and he sports black overalls with a large belt buckle. Despite the fact that his arms are white, black stripes cover them. He also sports black pants and shoes with high heels.