his little demon (rengoku x reader)

Since you were little you were abused until the day you met muzan, muzan would taunt you making you paranoid and have nightmares. Years later you finally decide to join the demon slayer corp as a ice breather,(I decided to leave out the training). One day when you were sent out on a mission you bumped into muzan turning into a demon, if you want to know more read the fucking book.(please and thank you)
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Warnings:
-Bad grammar
-smut(prob in chapter 30)
-violence
-cursing
-gore
-and other things
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Things to mention:
-this book is old so the first chapters will be weird.
-this is a fan fiction of you and rengoku
-I got the inspiration from a book called professor rengoku(I think I'll update it when I see it again)
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