Yuno is a young man of average height with messy black hair, gold eyes and he has a lean build. He is often described and seen by others as a "handsome and good-looking guy" with Asta nicknaming him "pretty jerk" and once called so by Yami Sukehiro later on in the battlefield. According to Ralph Niaflem, Yuno is the spitting image of his mother Ciel Grinberryall