College student Wang Richu enters the "sandbox world" developed by the "Moren" company, trying to change Pan Jinlian's tragic fate in "Water Margin". He entered the story successively as Pan Jinlian and Ximen Qing, but found himself in a more complicated dilemma: the memory was abnormally real, the exit command failed, the mystery of his life experience emerged, and the story itself has a powerful "error correction ability." In the end, no matter how hard he tries, tragedy takes another form, causing him to question whether this is a game or real destiny.