Tamayo is a gentle, wise, and incredibly intelligent individual. However, despite her usual kind, caring, and considerate disposition and personality, Tamayo has displayed a more cruel and vicious persona. She is also the first one to break free from the Kibutsuji Curse. Who hasn't died when saying Muzan's full name. Tamayo declared she never had the intention to kill and eat humans. She just wanted to live pass her illness and be with her family.