Hisa (ひさ Hisa?) is an old lady who welcomes Demon Slayers to rest in her house. Tanjiro Kamado and his group visit her after they fight Kyogai at the Drum House.
Hisa is a short, old lady with wrinkled skin and thick eyebrows. Her bulky, gray hair is tied into a medium sized bun with two strands poking out behind her ears.
In most of her appearances, Hisa is seen wearing a plain maroon kimono with a purple sash with black zōri and white tabi socks.
Not much is known about Hisa's personality, but she comes off as a very kind and welcoming person, bringing in the injured Demon Slayers without hesitation and providing multiple commodities. Despite Inosuke Hashibira's and Zenitsu Agatsuma impolite nature, Hisa is very patient with them and doesn't appear to be affected by their remarks.
Hisa's family was once saved by the Demon Slayers. They started managing a free rest house for them as a token of gratitude for their work.
Toyo (豊とよ Toyo?) is an udon street vendor.
Toyo is a man of average height and build, with a bald head and closed eyes.
Toyo wears a dull-yellow-and-black striped kimono, light pants, and dark shoes. His first appearance shows him smoking a kiseru.
Toyo is very passionate about his udon, being visibly agitated about Tanjiro Kamado discarding his bowl without eating any. However, once Tanjiro returns and orders two bowls that he finishes quickly, Toyo is pleased and thanks him for his business.
Toyo was born and raised in Asakusa. At some point in his life, he opened an udon shop in Asakusa, as he loves the city and wants to stay there.