Byler_Steddie_elmax
This is a swap au, so Daki swapped with Nezuko, Gyutaro swapped with Tanjiro
zenitsu didn't really swap lives, he is now Kanao's brother
Inosuke swapped lives with Zenitsu, but he is still aggressive yet does not wear his boar mask
Shinobu swapped lives with Kanae
Aoi swapped with noone
And the rest of the Hashiras don't swap, unless you have a suggestion for who should swap with who
Everyone's Gender is the same as well, so only life swap, no gender swap. I hope this make sense, if not, it may make more sense in the story
Disclaimer : some things that happened in the anime, may not be added into the book
Hope you like the story, and if you do check out my other book 'Demon Zenitsu' or 'Demon slayer Pictures'
Also I'm bad at writing combat/fighting sences