What happens when Yushiro and Lady Tamayo decided to take in a little girl? What will happen when Muzan finds out about it will he try to kill her? The man who had her at first was gonna sell her anyway she didn't have a name so Yushiro decided to name her Sailor and Lady Tamayo suggested her last name to be Tamayo just like her's. Yushiro agreed to that because he knew Lady Tamayo always wanted to have another child after her late husband and children died.I don't own Demon Slayer I only own this story.All Rights Reserved