Liu Dana, who once served as a weapons instructor at the Nanjiang Military Region's Special Warfare Academy and was proficient in the structure of all firearms, ballistic physics, and actual combat killing methods, retired from the smoke and lived in seclusion in Jiangzhou. Now he is a middle school physics teacher. He explains firearms knowledge based on mechanical principles in class. After school, he lives in a simple hut in a village in the city. He just wants to live a stable life and stay away from disputes.
The tragic news of the tragic death of an old friend broke the peace. On his deathbed, he was entrusted with the task of protecting the six-year-old girl Xixi at all costs.
Xixi has a super memory and can memorize all secret information; the intelligent robot Xiao Ke travels with her and is proficient in route deduction, disguise and makeup, and gun disassembly and modification; all kinds of stunning beauties gather around her, one person supplies the gun, another person plans, one person provides medical treatment, and one person controls the intelligence.
No supernatural powers, no fantasy. Just rely on every firearm and every inch of fighting skills in the real world.
In the past, the military marksmanship instructor once again held a sharp blade and hid in the city. He used the gun as a shield to protect one person's safety, kill all incoming enemies, and stir up the undercurrent of murderous intent in the entire Jiangzhou.
