Hiei is a fire demon who is incredibly fast, a master swordsman, and wielder of the dragon of the darkness flame. He has a rude, sarcastic, impatient, personality. He hates stupidity and has a cold personality towards humans and weak demons, but is surprisingly warm to those he cares about. He is a mysterious and a man of few words. Hiei will cooperate if he warms up to you, if there is no choice in the matter or if it poses a challenge. He does not become friends or fall in love easily.