Demon Slayer: Tanjiro becomes a ghost, Nezuko becomes a pillar!

[Demon Slayer] [Fanfiction] [No System] [No Time Travel]
On the day the story begins, Nezuko goes to sell charcoal in Tanjiro's place, and Muzan transforms into Tanjiro. How will the whole story unfold?
When Akaza, who never kills women, encounters Nezuko, who has become a Demon Slayer, can Akaza still bring himself to do it?
What would Inosuke be if his mother hadn't left Doma?