demon slayer

hi guys, so this is the Mugan train arc and there are Zenitsu, Inosuke, Tanjiro, Rengoku(your brother), sanemi is there too and he's your bstf, and you you also use flame breathing. Story:you were wounded from the fight with enmu and as Rengoku was fighting akaza he told you to stay back. Rengoku was impaled in the stomach by Akazas arm and he dies you try to run over but Sanemi holds you back. btw your name is Yui. pls don't mind the voice, I tried