Chiye has only two creeds in life: first, never believe in tears; second, never let the police catch you.
As a "scavenger" who hangs out in the gray industry, Chiye thought he was reading a script for the "villain vest style" until he picked up a diary belonging to the deceased at a rich man's funeral, which actually recorded in detail the operation of a civet cat to replace a prince twenty-five years ago.
What's even more outrageous is that the "abandoned sick baby" in the diary has the same birthmark as Chiye.
In order to find out whether he was a "stolen young man from a wealthy family" or a "manufactured fake," Chiye was forced to infiltrate the police station and become a "non-staff consultant" with nothing but good looks.
But he never expected that the female police officer in charge of the case, Shen Weiyang, turned out to be his ex-girlfriend who he had "touched" in order to get rid of tracking.
On one side is the tightrope game of finding the truth, on the other side is the face-to-face interrogation of the ex-girlfriend with an extremely high IQ.
Chiye: "This is not solving a case, this is risking your life! Officer Shen, did you agree to only talk about the case and not about feelings?"
Shen Weiyang smiled while loading the gun: "Chiye, before I catch the mastermind behind the scenes, you are not allowed to go anywhere, not even to hell."