The diary left by Xiujiang's father recorded five cases and five very special techniques for solving crimes.
One is smell, the second is hearing, the third is sight, the fourth is mind restoration, and the fifth is the most complicated, weirdest, and hardest to learn...
As long as you learn these five crime-solving techniques, the murderer will have nowhere to escape. Xiujiang only learned the first one, smell, but he also became the best detective in the bureau.
No one sees such a good thing?