Because of his passionate childhood dream, Zhuang Xiaofan gave up the opportunity to enter a university to become a college student after graduating from high school and resolutely chose to join the army. Because of his outstanding performance in various assessments and his amazing talent in the first year of being a soldier, he was specially recruited by the special forces. At the age of 20, he was promoted to lieutenant officer, codenamed "Ghost", sniper. The future was promising. The day before, Zhuang Xiaofan's Wolf Warrior Team received an order from their superiors to perform an anti-drug mission on the border with China. On the way back from completing the mission, the Wolf Warrior Team encountered an ambush and attack by a mercenary team called the Red Scorpion Mercenary Group, resulting in the heroic death of seven members of the Wolf Warrior Team. Seeing his comrades fall one by one, Zhuang Xiaofan gradually fell into a rage. He used the cover of woods and rocks to move at high speed and killed seven members of the mercenary team of the Red Scorpion Corps. After being examined by the military hospital, Zhuang Xiaofan was greatly stimulated by the sacrifice of his comrades and suffered from post-war stress disorder syndrome. He was not suitable for fighting on the front line and had to choose to retire early and go home. After settling his dead comrades, he stayed at home for a year. With the encouragement of his family and sister, he thought of the sacrifices of his comrades and cheered up to find a job outside. Zhuang Xiaofan did not forget his mission and responsibility as a soldier to protect his family and country and resolutely chose to become a policeman. Later, he was promoted to an official police officer due to his major criminal performance. During this period, he repeatedly solved strange cases and arrested several American spies who attempted to undermine the security and stability of China.
Due to his outstanding abilities in all aspects and strong psychological quality, he was specially recruited by the national security department (referred to as national security). After passing the assessment, he became a national security investigator.
