The story takes place in Southeast Asia. The protagonist Song En witnessed his father, an undercover agent, being killed by drug traffickers when he was young, so he was determined to avenge his father and signed up to be a police officer when he grew up. Unexpectedly, he was accidentally injured during a training session at the police academy and suffered sequelae. His superiors suggested that he retire. Unwilling to do so, Song En stole the police's guns and ammunition on a dark and windy night and fled for fear of crime. He has never been heard from since. Many years later, when Song En appeared in front of his classmates Chanon and Susie at the police academy again, he had transformed into a confidant and capable general of the Southeast Asian drug lord. It turned out that the drama of fleeing for fear of crime many years ago was a drama carefully designed by his superiors to allow Song En to infiltrate the drug cartel. In the battle to encircle and annihilate the drug cartel, Song En and others worked together inside and outside to wipe out the drug cartel, and killed the leader of the drug cartel, who was also the murderer of his father, at the border, comforting his father's spirit in heaven.