Demon Tanjiro AU (spoilers?)

Tanjiro is injured, leaving Nezuko to go down the mountain in his place. When she returns, a familiar but horrific scenario unfolds infront of her. ( I do not own Demon Slayer or the characters)

The True Demon King

IM GOING TO START RE WRITING THIS STORY This is an AU that I have created it's about where tanjiro is the now true demon king hIs father was the demon king but he knew Muzan the fake demon king was around the humans so he traveled there and only his eldest son or daughter can be the heir to the throne muzan was a trai...