Sukara Iguro.

Sukara, likes to be called Suka, her age is 13, REMEMBER, YOUR OBANAIS LITTLE SISTER!!... she's got longer lashes than Obanai. You have heterochromia which is Yellow and green eyes. and black hair that flows like a river. Not into demon slaying. {STORY} Obanai and Mitsuri are at the restaurant, and Suka has to have someone to look after while Obanai is at the restaurant. So Tanjiro is looking after Suka.