You’re Nezuko Muzan has put ALL of his demon blood into Tanjiro before he died after the final battle, causing Tanjiro to become to new demon king All the demon slayers that are still alive (Giyu, Kanao, Zenitsu, Inosuke) are fighting him, but not succeeding… Right now, Tanjiro’s goal is to turn you, his little sister, back into a demon since you were turned into a human again “Where’s Nezuko!!” he yelled angrily, looking for you, while using his chains to hold back the other slayers