I am Shinobu Kocho,the insect hashira.

Shinobu always have rage in her heart and remember wen Kanae was dying,she said this to her "pls don't join the Demon slayer corps and live like a normal girl" then she died.After that she smiles even her heart his full with rage cause her sister Kanae said "lways smile Shinobu" when Kanae was alive.Shinobu have rage in her heart while smiling cause UPM2,Douma killed Kanae