Rolling updates * Needs More Examples
The story is it's own little world: It's not merely secluded from the context, there IS no context. It is not merely the morality that is centered on the protagonists, the world itself revolves around them. This is not when a story takes place on a secluded island or in a box: In those cases there IS still a universe outside the place where the characters are trapped. The characters are still connected to the outside world by their memories, and there are people in the outside world who could miss them. The stories where there is Nothingness Outside The Plot are instead the stories where the characters have no backstory, no anchors outside the plot, and whatever they do there will be no outside forces of any kind reacting to it. The story does not have to take place in a pocket dimension or even a secluded town: Rather then being shown to not exist, the outside world is simply unmentioned and discarded as irrelevant. When a show or webcomic or whatever starts this way, it usually melts away at the same pace as Cerebus Syndrome takes a hold on the plotline. NOTP is the opposite of the two standard methods of Deconstruction, and that is most likely one of the two reasons why it exist at all: Certain tropes and theories are SO much easier to play straight when there is no context to take into account. The other reason for NOTP is that it is simple. By leaving EVERYTHING as TBD (To Be Defined), the author can concentrate all effort on the actual plot, and save the worldbuilding for later. Closly related to Protagonist-Centered Morality: Both tropes are about the world revolving around the character(s) although in different ways. NOTP easily leads to characters becoming The Omniscient, because when there just isn't anything outside the plot then a character can effectively become omniscient by having a decent overview of the plot.
Counterexamples This section will NOT be included in the final version. Just having it for now to help define what this trope is by defining what it is not.