kny final battle

(your the girl in the background) you:blood moon pillar, former upper moon 0 personal:cold, intimidating, always rude and distances, but sometimes kind to others hashiras:gyomei and sanemi and obanai and giyuu and rengoku and tengen and mitsuri and Shinobu and muichiro kamaboko squad: Tanjiro kamado and nezuko kamado(siblings), inosuke(Douma's step son), zenitsu, kanao(adopted by the butterfly sisters/Shinobu and kanae), genya(Sanemi's little demon brother) hashira:s leader:kagaya Ubayashiki upper moons:kokushibo and douma and Akaza and Kaigaku and hantengu and gyokko and daki and gyutaro and nakime demon king:muzan kibutsuji Story:so this is the final battle and they are falling into the infinity castle (if no one knows about demon slayer or the infinity castle) so the infinity castle is like underground and it has a lot of mansions inside or rooms and there is a lot of stairs and hallways and rooms