Manga: the End of the World Line Starting from Demon Slayer

[Comprehensive comic + Zhutian fan + Invincible flow + perfect ending + modified knife] The revised plan for the perfect ending of the fantasy manga series starting from Demon Slayer! There is no heroine, no changes to the original good ending or cp, only the tragic ending. Speed through the flow, transcend the five realms and hunt for novels. I am too lazy to go through the plot. I usually just mess around and watch the show... [My name is Lie Geer, my abbreviation is Lie Qi... This is my story, an abstract story of a man blowing up the system many times! ] [Site: Demon Slayer → Naruto → Dragon Clan Fan → Genshin Impact → etc...]