Who is she? Upper moon 0... (Douma x F! Reader)

Over a thousand years ago,
(Y/n) was a human and lived with her family in a village. (Y/n) had been born with a fatal disease that had no cure so there was no hope in a good life for her. When (Y/n) turned 16 she was put in an arranged marriage and she was upset from this. Thinking that her life will be bitter and hopeless in a love less marriage and die young from her disease. But one night Muzan gave (Y/n) A choice to become a demon to leave behind her old life and start a new one as a demon. She had accepted the offer to become a demon.
Muzan said (Y/n) was special because...
And when the upper moons see her for the first time. What will happen?
⚠Warning⚠
This book contains Blood, Gore, Death, Violence, Bad Language, Abuse, Sexual Themes, Angst, and Trigger Warning too.

Starting date - July 18, 2023
Ending Date - ???

Highest Rankings ( So far)
#1 uppermoon
#1 uppermoonzero
#1 uppermoon0
#1 domaxreader

Hello! I'm starting another demon slayer fan fiction and if you are under 18 or is sensitive to the stuff listed above then this book isn't for you. You've been warned. But anyways I hope you will enjoy it.

All rights to demon slayer and you own yourself. I only own the some of plot stuff.
And most art made is made by me :)
So...
I will be busy drawing all of it 🥲