Mui long lost sis

You are the girl in the pic this is when there was a demon in y’all’s house(aka muichiro yuichiro and makoa (you)) yuichiro died that day but you and muichiro survived but you got tooken but another demon/muzan muichiro tried to help you but it was to late fast-forward to now when muichiro is 14🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺🌸🌺 Hashiras/slayers:tengen,rengoku,obanai,gyomei,muichiro(yur brother),giyu,sanemi,shinobu,Mitsuri,Nezuko,tanjiro,Zenitsu, inosuke , genya 🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨🪨 Story: you were in the infinity castle and when muzan teleported all the hashiras and demon slayers in the corps they all saw Yu even muichiro(yes got turned into a demon)