this is demon slayer but instead of the infinity castle its a haunted mansion theres the hashira Gyomei Himejima Giyuu Tomioka Sanemi Shinazugawa Mitsuri Kanroji Obanai Iguro Tengen Uzui Muichiro Tokito Shinobu Kocho Kyojuro Rengoku and the kamaboko squad Tanjiro, Nezuko, Zenitsu, Inosuke, Genya, and Kanao.