The protagonist Jiang Chengben is a top student in the military academy with a good foundation and Miaohong roots. He was selected by the secret department to implement the "Great Wall Project". He forged the background of being expelled, returned to his hometown in the county, and started out as a low-level gangster. He quickly rose to prominence relying on his resourcefulness, fighting skills, and limited intelligence support provided by the secret service behind him. He used a "ruthless" image to integrate underground forces, but he was actually removing real social cancers and secretly protecting national interests. In the mid-term, he will make false promises with foreign gangs and bear the reputation of being a "traitor" in order to gain the other party's trust and infiltrate their ranks. In the end, when the country needs it, he will cooperate inside and outside, lead his "black army", wipe out all the foreign forces that have penetrated into the country, and complete his mission.
