this takes place in the woods

you are a demon walking around the forest, pretending to be a human so you could find Tanjiro, who Muzan sent you to kill. Your blood demon art is crimson rain, you can create a rain storm where the rain is like red acid that hurts everyone but you, but you can only cover a certain amount of land, you are also a uppermoon. After a while you saw Tanjiro walking with his sister Nezuko looking for you, with Tanjiro trying to track your sent and Nezuko looking around for you