Sheng Xiaoran originally just wanted to be a low-key detective, but a new unsolved case involving his parents' old case triggered a series of mysteries. As many cases occurred frequently, Sheng Xiaoran and his assistant Lin Chuchu traveled from the city to the border, constantly uncovering mysteries and encountering multiple tests from friends, opponents and villains. The humorous style runs throughout the book, and the clues between the characters are intertwined with each other, gradually approaching the truth through difficult reasoning and relaxed ridicule. The three volumes revolve around urban serial murder cases, border disappearance cases, and transnational conspiracy cases. Each volume is independent but interlocking. In the end, Sheng Xiaoran solved all the mysteries and completed self-growth and redemption.
