Mahito is thrown into the world of Chainsaw Man, with no memory of how he got here. This world has no concept of cursed energy, no curses, no Jujutsu Sorcerers, and no knowledge of jujutsu society whatsoever — none of that exists here. Public Safety, devils, and everyone else in this world have no framework for understanding what Mahito actually is; he isn't a devil, doesn't feed on fear, and doesn't operate by any rule this world's Devil Hunters have ever encountered