This is Shadow Bonnie from Five nights at Freddy’s he appears rarely in the games he is a shadow animatronic alongside Shadow Freddy he’s mostly the color black with two white eyes and a white mouth and they glow (be anything you want even exotic butters I don’t care)

Muzan has been looking for the blue spider lily for centuries and he is terrified of Yoriichi because Yoriichi almost beheaded him. (Be who ever you want a demon slayer, Hashira, demon even a toaster I don’t care) Uppermoons: Kokushibo, Douma, Akaza, Hantangu, Nakime, Gyokko, Gyutaro, and Daki Others: Enmu and Rui (I’m sorry if the voice is bad)