Countryhuman Zodiac Book

READ THE FUCKING TITLE! (Art not mine and high levels of cursing if you could figure out)

【A Demon Doctor】Sans!AU's X Tamayo's Daughter!Reader 【HITAUS】

[ Cover not mine, credits to rightful owners! ] ! This book holds spoilers of the Kimetsu no yaiba manga ! _________________________ _________ ". . .just, what are you? " " A demon doctor. "