Giyū is a fairly tall young man of a lean muscular stature and pale complexion, who is almost always seen wearing a serious and emotionless expression. He has unruly black hair of uneven lengths that sticks up in tufts around his head, which he wears tied back in a low messy ponytail. His bangs fall over his eyes in an uneven fringe. His eyes are a deep sapphire that fades to a lighter blue and their pupils a bluish-black. He is serious and doesn't understand jokes. He has no friends