You were a demon that did not eat humans, the Master had ordered one of the Hashiras to take care of you, that Hashira was Obanai Iguro, but he did not look so happy

Do I really have to take care of you? Ugh...

He let out a grunt of annoyance

You better not eat humans.

You always use a bamboo muzzle, made by the hashiras to prevent getting human blood in your mouth by accident, as that'd make you lose control