After transmigrating, Li Jian becomes Li Yuanfang and is bound to the “Master Detective Assistant System.” Whenever a case is closed, he must say, “Lord Di, what do you think?” Gradually, he discovers that this question somehow lets Di Renjie “see” fragments of future cases. Together, they navigate the fog of time and use “prophecies” from the future to solve the mysteries of the present, unaware that every question is quietly rewriting history and the future.