The protagonist Qin Feng is not a traditional detective, but a civilian auxiliary police officer who was "exiled" to the archives by the police force. His superpower does not come from rigorous reasoning, but from a passively triggered "situational flashback" - as long as he comes into contact with clues related to historical unsolved case files, he can instantly "soul travel" to the perspective of a bystander at the time of the crime and see key fragments. However, this process is extremely energy-consuming and difficult to distinguish between true and false, leading to him being mistaken for a "crazy maniac" in the past. And every time his policewoman wife Su Wanqing complains and questions his way of handling cases, she unexpectedly becomes a logical anchor for him to sort out the chaotic "flashback" scenes and find the key to solving the case. The essence is: he uses metaphysics to see through the truth, and she uses science to put it into practice.
