You had cat ears and cat tail, since you got hit by a demons Blood Demon Art. You instantly went to Shinobu, going behind her, as you had your hoari cover your head.

Shinobu had you stay with one of the Hashira's each week, with the permission of Kagaya. So, the first week is with muichiro, who seems to like petting your head, as nezuko and Tanjiro pets your head as well. Though, Inosuke would grabbed your tail and muichiro would make him back off.

Right now, you had your head on muichiro's lap, as he pets you.