Hirotsu is a middle-aged man with grey, swept-back hair, a mustache, and a short beard ending in a spike. His eyes are violet, with a monocle over his right eye, secured by a gold chain. He dons a long, black coat over a white dress shirt with a black bow - his pants and shoes being the same color. Over the coat, he wears a dirt-brown scarf that's nearly the same length as his coat. A chain smoker, Hirotsu always has cigarettes in his pocket.