Spiritual energy revives, and strange cases occur frequently. The former ace of the criminal organization "Shadow", who lost his memory and was on the run, was picked up as an apprentice by the traditional detective Lao Chen. While using his instincts to help solve supernatural unsolved cases, he struggled to clear his name in the warm master-disciple relationship, but he didn't know that his master was the last guardian of anomalies like them in the end of the law. When his memory awakens and darkness returns, he must make the ultimate choice between returning to sin and protecting the only light.
