Crimson Bonds

When Tanjiro Kamado returns home early, he finds his family slaughtered by the Demon King, Muzan Kibutsuji. In a desperate attempt to protect his sister Nezuko and avenge his loved ones, Tanjiro fights tooth and nail against Muzan but fails. In his final moments, he unknowingly consumes Muzan's blood, transforming himself and Nezuko into demons.

Now, bound by their cursed nature and hunted by Demon Slayers, the siblings must navigate a dark and perilous world. Tanjiro clings to his humanity, determined to protect Nezuko and find a way to undo their monstrous transformation-while resisting the ever-present hunger threatening to consume them both.

Will the bond between brother and sister be enough to withstand the darkness, or will the curse of Muzan destroy them from within?

Hi there This is my second ever Fanfic. I got innspiration for this story after reading The dancing star in ao3. This fanfic will be a bit different from that. I will remove this if the author of this fanfic request's it.