(When he was fighting with tanjiro and about to get his head cut off theres a quick white flash and there seems to be a little girl in front of him. Separating him and Tanjiros sword. She has white wings that are covered in blue eyes, a halo above her head with a big blue eye on the inside. Her long white hair touching the floor. She stares at Tanjiro not saying anything and then she touches his forehead and then he suddenly leaves without killing rui. She then turns back to rui and smiles)