Private Lin Qinghai, guarding a frontier outpost, is attacked by drug traffickers. A life-or-death experience awaits, and he awakens his proficiency system. He fires his rifle dozens of times, achieving godlike marksmanship. While a sharpshooter might require decades of practice, Lin Qinghai grows stronger through constant firing. Sniper marksmanship, deadly combat techniques, pistol proficiency, jungle camouflage... Constantly improving his proficiency allows him to master these skills with ease, becoming a formidable special forces soldier, feared by armies worldwide and conquering the world.