A fiction story, on the other hand, is a work of literature that is not constrained by the rules of reality. It can be about any subject matter and can employ any number of literary devices. The purpose of a fiction story is to entertain the reader and transport them to a different world.
In summary, the key difference between a mystery story and a fiction story is the presence of a crime or problem that needs to be solved. Mystery stories focus on the puzzle-solving aspect, while fiction stories can be about any topic and are designed to entertain the reader.