The Demon Phoenix, Demon Slayer Fanfiction

What if Tanjiro knew breath of the sun, and what if Nezuko could control herself more? And what if she also knows breath of the sun.
What if Sabito and Makomo lived?
This is my take on a fanfiction, note that some parts will be inspired by the fanfiction Blade of Demon Salvation by Manu259 but I won't be stealing hsi work don't worry.
Nezuko will still be a demon but more will be in store, also I'm a long chapter guy so I'm sorry if you get tired reading my Fic, and I don't wanna skip any scenes even id they remained unchanged, you can skip if you want.
Also the fanart at the cover is not mine.