Two Kamados, One Human

Nezuko was a simple girl with a lovely family. She loved her brothers, sisters, and mother very much. Suddenly, her life takes a drastic turn when her family is left slaughtered by a demon, with only her older brother, Tanjiro, surviving. Well, did he really survive?
Tanjiro laid limp on his tatami mat, not breathing at all. Nezuko couldn't give up hope yet, he was still warm. She stays by his side. He moves. He growls. He sits up. He's no human anymore, Tanjiro is one of them. A man eating demon.
Yet not all hope is lost, Tanjiro seems self aware and unwilling to eat flesh. With her newfound life, Nezuko is sent on a spiral to cure her brother, eradicate demons, and avenge her family. Will she reach her goal? Can a fiery sensei teach her to master the sword? It is a tough call, but Nezuko isn't giving up so easily.

Yes, I know SOOOO original. I've been wanting to write a Demon Slayer au switch fic forever and I've finally gotten around to it! I'm going to try to make it original, at least with the plot. Please feel free to correct any errors I make. And yes, I'm giving Rengoku some plot armour because I still can't let him go to donut heaven.
Just as a side note, this fic will contain violence and minor language. I'll put a warning for anything else before a chapter.
Enjoy! 😘

(lol I'm awful at descriptions, but hey, it's a learning process)
! Cover art is not mine, all credits go to Liyracat !