It all fell down ~ Demon Slayer Fanfiction

"I've lost my hope and my kind heart thanks to you. I may have ran away before, but I won't anymore." The sun had rosen and Muzan was gone. However, there was a cost to this. Tanjiro Kamado had turned into a demon thanks to his cells and is now immune to the sun. His sister was killed trying to save him, and the...