Demon Slayer: the Ending Will Be Hard to End

(Demon Slayer fanfic + all demolition/removal of the lord to the official team + slow pace + everyone survives + OOC warning + the original work has more plots + the protagonist is very strong) He is a tree born from the beginning of the consciousness of heaven and earth. It is called the World Tree. It was supposed to sleep in the endless darkness until one day, a little Heavenly Dao found Him. That world had man-eating evil spirits, as well as demon slayers who sacrificed themselves to save ordinary people. The death of some characters caused indignation and grief among countless people, so they had no choice but to ask for His help. All causes and effects have an end, there will be a god to overcome the suffering in the world (Both Otomo and Yumeyo are allowed. I wrote the name because the third person is more convenient. You can post in the comment area what plot you want to see. If you don't accept writing advice, just leave if you don't think it looks good. The author has a glass heart)