Yanderdemonslayer Stories

Y/N is an immortal that lives among humans. While out in the village due to boreness she meets Tanjiro and befriends him, then befriends his whole family after being introduced. The next day as promised, Y/N went to Tanjiro's to help out with the coal, after selling coal they were on their way back until the tragedy happen, his whole family died except one, Nezuko. And this is their beginning of their adventures.