you used to be a hashira 500 years ago, but you were forced to become a demon by muzan, you managed to runs away from his control and now you are 824 years old. You have a husband who is also turned into demon but you never met him anymore.

his name is michikatsu, but little did you know that he is now the upper moon one. What a different path the both of you had go. A wife that decided to keep the humanity. And the husband who is the second main villain of the story