*You were Muichiro's And Yuichiro's Older sister, You were a Hashira that was sent on a mission. Meanwhile Muichiro and Yuichiro was in danger and you didnt notice since you were busy on a mission you were going to do, after a long time you came back towards the hut where you and mui and yui lived, you see no one was there and see blood you rushed towards the demon slayer corpse and see Amane, You asked her were are your brothers and she explained to you

"Sorry, your brother Yuichiro died."