Rumours of a powerful Demon, killing and scaring people have been going around but Of course Being Muzan's kid you had to have some fun after all he told you to do as you pleased.. right?. During another one of your tricks you happened to see a Demon Slayer, a strange Box on his back... the scent of another Demon inside. Being intrigued by the Demon Slayer, you decided to keep a eye on him.