Santa: You know things you shouldn't. Things you couldn't. How did you know [ Junpei: Well The Narrator: The answer to that was easy. He knew because I knew. The presence of a narrator in some form is one of the most fundamental tropes, but that doesn't stop writers from having some fun with it.
For the purposes of this trope, the narrator is an in-story character, but their exact identity is kept obscured from the audience until the closing moments of the tale, where they dramatically reveal , implicitly or otherwise, that they had a role in the action, and a vested interest in the story's outcome. In fact, it might be why they're relating the story to you in the first place. Note that this only applies when the narrator's identity is a form of Tomato Surprise.
Many stories openly acknowledge the narrator's identity as an in-story character from the very beginning, and are not examples of this trope. This is especially likely to happen in fictional film and television works made after, say, Since the camera itself is usually omniscient, having an omniscient independent narrator on top of it seems to be frowned on by scriptwriters, even when one might be useful.
So the filmmakers have what sounds like an omniscient narrator, and then flippantly ID the character in the last pre-credits reel. In video games, it is likely the narrator is the Final Boss themselves should this trope kick in. Related to the Literary Agent Hypothesis. Can overlap with Unreliable Narrator.
If the story is being told to another character in-universe, it's Warning: Unmarked spoilers ahead. At the end of every chapter in The Demon Girl Next Door , a narrator chimes in with encouragement or advice for the titular demon girl, Yuko.
