Oliver has knee-length white hair that is tied into a ponytail with a black bow and has two black horns. His outfit consists of a black uniform with stripes on his short sleeves and the bottom of his shirt and a diamond-shaped symbol with a line. His left arm sports a black armband and wears white socks and black boots with white shorts. His skin is fair. He also wears blue jean shorts and a sharp jawline. He is also considered "the most handsome boy in high school".