Nezuko Kamado is the deuteragonist of Demon Slayer: Kimetsu no Yaiba. She is a demon and the younger sister of Tanjiro Kamado and one of the two remaining members of the Kamado family. Formerly a human, she was attacked and transformed into a demon by Muzan Kibutsuji. She can talk, but can only make mumbling noises because of the bamboo in her mouth. Because she hasn't talked in a long time, she stutters in speech, But she can be Taught to talk and she can understand human languages.