let the world burn

ok so background is my OC u can either be her or ur OC but it friends with muichiro like u would let the world burn for him type friendship and this is based off a song but anyway muichiro just got his arm cut off by kokupuff(bcuz I want him to live) but u set the estate on fire and tossed him out letting urself burn he tries going back in but tanjiro is holding him back saying it's not worth it it in the middle of the fire fighting the old ass cocopuff