Top agent Ling Feng transmigrates and is reborn, unexpectedly becoming bound to a mysterious mission System and turning into a rising star in the Ministry of State Security. Amid the deadly clashes of modern espionage, he relies on the System's guidance and his past-life experience, joining forces with Su Qing, a coolheaded and perceptive analyst, and Zhao Yueshan, a seasoned veteran agent. Together, they repeatedly foil intelligence plots by foreign forces. But as their missions deepen, the secrets behind the System and the truth of Ling Feng's rebirth gradually come to light. The ultimate battle over national information security has begun. At the crossroads between protecting his country and uncovering the truth, Ling Feng will wield loyalty as his blade and wisdom as its edge, cutting through layers of fog to forge an impregnable Great Wall of national security.
