The city after the disaster was divided into numerous restricted areas, and Shen Xiulin was the "Night Owl" responsible for handling abnormal events. No one knew that he was the last person who should not have walked out of the restricted area alive.
During a mission, he was targeted by investigator Huo Huaian. One tried desperately to hide his identity from fifteen years ago, and the other traced the truth along all the abnormal records. The two tested each other and were forced to work side by side, only to discover that the so-called restricted area, the seven-seat system, and the ORIGIN system that maintains the operation of the city all point to the same experiment number-041 that has been buried for many years.
What's even more troublesome is that Huo Huaian seems to have known that Shen Xiulin had a problem for a long time.
Shen Xiulin always thought that he was hiding well, until one day he discovered that this sworn enemy seemed to be waiting for him to fall off his horse from the beginning.
