A group of dead people, no, it should be a group of living dead people who are left alone in another world because there is no fullness of heaven and hell and they cannot be reincarnated.
They caused such a thing in the 'afterlife'. The miserable male protagonist who couldn't catch the main task of the story, the god of death named Ono Meizi, and the rabbit, Liangzi... Who is the final boss? Hey hey hey