Nezuko Kamado
She wears a bamboo muzzle to hide her fangs, protect humans from her demonic impulses, and serve as a symbol of her iron willpower. Nezuko is the younger sister of Tanjiro Kamado. How She Got the Muzzle: After her family was attacked and she was turned into a demon, she was fitted with the bamboo piece to prevent her from harming anyone. Her Powers: Unlike other demons, she refuses to consume human flesh. She gains strength by resting and sleeping rather than eating. Where She Stays: Since demons burn in the sun, Tanjiro carries her around during the day in a custom wooden box on his back.