Naho Takada (高たか田だ なほ Takada Naho?) is a servant of the Butterfly Mansion.
Naho is a light-skinned, young girl with button-like black eyes. Her hair is parted in the middle with two braided twintails tied with green butterfly clips.
She wears a long-sleeved nurse uniform with a green wrap tied into a bow around her waist and white socks and shoes.
After her family had been killed by Demons, Naho was taken in by the Butterfly Mansion.
Yushiro (愈ゆ史し郎ろう Yushirō?) is the traveling companion of Tamayo and a close ally of Tanjiro Kamado. He was turned into a Demon by Tamayo.
Yushiro has the appearance of a young boy with pale skin and bright lavender purple eyes. He has short hair that is neatly styled and vertically shaded from a dull green to black. Yushiro wears a button-up shirt under an all-white kimono and dark blue pants.
Yushiro was a human who was under the care of Tamayo as she was practicing as a medical practitioner. He was in frail state fighting a disease when Tamayo gave him the choice of succumbing to his illness or to live longer as a Demon. He agreed to become a Demon and has since stayed by Tamayo's side serving as an assistant as well as her guard.
