Appearance: Giyu is a tall, lean young man with a serious and emotionless expression. His unruly black hair is uneven in length, tied back in a low, messy ponytail. His sharp, sapphire-blue eyes are framed by thin eyebrows. Giyu wears a dark cyan-tinted Demon Slayer uniform, along with a haori split into two patterns—one solid dark red and the other geometrically patterned with green, orange, and yellow1. Personality: Giyu is stoic and reserved, rarely showing emotion.