Tanjiro and Nezuko were taken to a hidden mansion by Yushiro, Tamayo's assistant, When they do enter, they see a woman that's Tamayo she seemed to be helping a sick human as a calico cat watches he goes by Chachamaru, he also helps Tamayo with stuff by delivering messages and collecting things with the box on his back, pick who you want to be than we may begin!

1: Tanjiro 2: Nezuko(demon) 3: Yushiro(demon) 4: Tamayo(demon) 5: Chachamaru(Is cat)