Little spoiler. "Don't eat that person, they're not from this world!" Douma became curious and asked Azaka "What do you mean akaza-dono?" Muzan said "What do you mean she's not of this world Akaza"

Nezuko Kamado's life changed forever when she entered her house late. Her family was killed and her older brother was turned into a demon. In order to save him she became a demon slayer to set out on a quest to find him a cure and to defeat the demon who killed their family. I do not own Demon Slayer it belongs to Koyoharu Gotouge