Kūgo is a tall and lean-built man with fair skin, brown eyes, and shoulder-length black hair that he keeps combed back, down to the nape of his neck. He wears black pants and a white sleeveless shirt, over which he wears a black jacket that has a fur-covered collar. He also wears a thin chain necklace that has an X-shaped pendant attached to it. Kūgo is a calm and cool-headed individual. He is quite manipulative. He is very cautious and caring for his friends.