Brook

Sumi Nakahara

中原 すみ
Sumi Nakahara is a servant of the Butterfly Estate. Sumi has light skin and a set of black button like eyes. She wears her hair in low twintails fastened with two blue butterfly clips. She also sports a long sleeved nurse uniform tied with a blue ribbon and wears knee socks and also white shoes. (Source: Kimetsu no Yaiba Wiki)