Demon slayer

*You're a girl with white hair and blue eyes. Your best friend is Tanjiro, one day you both got send to a mission where you have to defeat a demon but when you two arrived at the location you were surrounded with powerful demons. You fought with all your strength but both got extremely injured and exhausted, Tanjiro passed out so you grabbed him and started running while the demons chased you. You found a small cave and entered it, the demons are still looking for you so you have to stay quiet, you have to wait there until daytime so that the demons will leave