Back to the 80s: I Solved 9,000 Crimes

After dying with regret for his girlfriend and a fixation on nine thousand unsolved cases, security officer Chen Qingfeng is reborn in the 1980s. Arriving right at the crime scene of Liu Fengying's murder, he uses his future knowledge of criminal investigation to solve the case, protect his beloved Lu Wenting and his master. He subsequently solves numerous bizarre cases, captures the two kings of Liaodong, exposes a serial killer, and recovers stolen national treasures. By breaking conventions with unique investigative methods, he grows through his struggles with villains, rising from a county security officer to the provincial bureau. Using justice to make up for his past regrets, he writes a thrilling legend of criminal investigation.