Demon Slayer: Ending the Lingering Regrets

[Demon Slayer fanfiction + all pairings broken up except the Master + slow-paced + everyone survives + OOC warning + lots of original plot + powerful protagonist]

They were a tree born when the consciousness of the world first awoke, known as the World Tree. They should have slept in endless darkness until one day, a young Heavenly Dao found them.

That world was home to man-eating demons and the Demon Slayer Corps, who sacrificed themselves to save ordinary people. The deaths of certain characters had filled countless people with outrage and grief, so they had no choice but to ask for their help.

All causes and effects have their end. A god will surely deliver the mortal world from its suffering.

(You can read this as an original-character or self-insert dream fic. I used a name because third-person narration is easier to write. If there's a plot you'd like to see, leave it in the comments. I don't accept writing advice. If you don't like it, just leave; the author's feelings are easily hurt.)