Kiyo Terauchi (寺てら内うち きよ Terauchi Kiyo) is a servant of the Butterfly Mansion.
Kiyo is a girl with light skin and a set of circular, black eyes. She has shoulder-length black hair with thin bangs framing her face, along with two pink butterfly clips on each side of her head.
Kiyo wears a long, white nurse dress tied with a dark, reddish-pink bow around her waist. She also sports white socks and shoes.
After her family had been killed by Demons, Kiyo was taken in by the Butterfly Mansion.
Saburo (三さぶ郎ろう Saburō?) is a villager from the village near Tanjiro's home.
Saburo's hair is curbed. He has an oblong forehead and sharp brown eyes with no distinct pupils.
Saburo possesses sharp discernment. He also displays sincerity towards young Tanjiro, willing to offer him his own house to take rest in for a night because he believes man-eating Demons will come out during the night and it would be unsafe for travel.
As an ordinary human, Saburo does not posses any additional power or abilities.
Not much is known about Saburo's past except that his family was killed by man-eating Demons.
