Muzan hinted that this vicious personality was Tamayo's original personality back in her earlier years as a Demon. This was seen when she gleefully boasted to him that she'd successfully created a human-transforming drug and managed to inject it into him, and later, upon being devoured and eaten, reduced to mere cells inside his body, Tamayo again showed her cruel side as she revealed the real effects of her drugs. However, despite her usual kind, caring, and considerate disposition and personality, Tamayo has displayed a more cruel and vicious persona upon confronting Muzan. Tamayo's cruelty and viciousness towards Muzan. She was one of the few Demons who, in her later Demon life, was able to regain and retain her human emotions to some extent. She was adamant in teaching her assistant, Yushiro, against violence and often reprimanded him for his habit of hitting others. Tamayo had a strong preference against violence, instead of killing humans for their blood, she chose to buy blood from consenting donors to survive. She made it a part of her mission to assist injured or sick individuals with her expansive medical knowledge - Tanjiro Kamado being among them.
Despite the generally chaotic relationship between humankind and Demons, she showed a great deal of kindness towards humans. Having devoted most of her life to researching the science behind Demons and Demon Transformation, she was one of the most knowledgeable people on the subject in the series. Tamayo is a gentle, wise, and incredibly intelligent individual. Tamayo wore a dark purple medium-lengthed hōmongi kimono that is decorated with wavy pale purple tree branches and red flowers, and a cream-colored taiko musubi obi to secure it around her waist, as well as plain white socks and violet zōri sandals.ĭuring the Infinity Castle Arc, Tamayo's eyes appear to have vertical cat-like pupils and Yushiro's blindfold scattered in her kimono.īefore, in her past, Tamayo wore her hair tied in a low ponytail and had stilted pupils. She has large, gentle eyes that do not possess pupils, only a haze of lavender that fades to dark purple the higher it goes, and notably red lips in contrast to her pale complexion. Tamayo takes the form of a beautiful woman with long, dark brown hair, parted in the center and worn braided back into a large, low bun, which is held in place by a floral tama-kanzashi hairpin.