Nezuko Kamado

Nezuko Kamado is one of the characters in Demon Slayer. She is Tanjiro Kamado's sister and she has turned into a demon when Muzan did this to her which makes her abd her brother's family are dead. She wears a bamboo muzzke in her mouth to prevent biting humans since she's a friendly demon. She can speak well but has a bamboo muzzle on her or without it, doesnt really mind either of it.