Mori is a fairly tall man and has a slender physique. He has straight, chin-length black hair slicked back, leaving bangs on each side of his face. Normally, he wears a sharp suit, consisting of a white button-up, a black pinstriped suit jacket, black shoes, and black trousers. The shirt has a purple and white striped tie. Over this, he wears a black trench coat and long, almost knee-length maroon scarf he leaves hanging over his shoulders untied. He also wears white gloves.