See this is the main problem with those reincarnated, they think the world revolves around according to the story, but like what prince Cecil said, they aren't fictional characters and the fact that they believe in the "new game" system is rather stupid, it's almost as if they think they're playing in a vr instead of accepting that they're literally alive and could die in that world and another main problem with that is, they never show nor continue nor what happens after the "happily ever after".