[Demon Slayer] Destroy the Sad Future

Revised and reissued. *Movie review, the main text is from the perspective of Demon Slayer. I plan to write the plot of the anime and manga. It is expected to be very, very long. I don't know when it will be finished. There should be no CP except for the official version. This is my first time trying this style of writing, so please forgive me if the writing is not good. *The character belongs to Mr. Crocodile, and the ooc belongs to me, but I will try my best to restore the character. *The timeline is at the end of the anime, when you board the train. Software starting with L is updated simultaneously. Intention: The future can be changed.