Yu Chilin was once a delinquent in Chang'an City. When he was investigating a case, he was accidentally involved in a demon incident and came into contact with the world of "cultivation" that was strictly controlled by the imperial court. He discovered that the so-called ghosts and gods were behind the manipulations of practitioners. In order to find out the truth behind the tragic death of his brother in the team, and to survive in this treacherous undercurrent, Yu Chilin relied on his agility and ruthlessness gained from crawling on the streets, and embarked on a path of spiritual practice that was neither good nor evil. What he wants to investigate is not just ghost cases, but also people's hearts.
