"Each" story is a world, and each story has its own space to develop on its own, but when the story goes off track, story guides who specialize in correcting the story will appear. They travel between the stories and meet and understand each other's people in each story. Although they will not exist in anyone's memory in the end, they do exist to protect the normal operation of each world.
Through the story guide, we can enter the story and re-read the story from another perspective.