Three years ago, Lu Chen was expelled from the special forces for "manslaughter" and became a street security guard. Until a bizarre kidnapping case forced him to activate his dusty secret agent identity - "Viper".
Mission goal: infiltrate the transnational criminal organization "Styx" and seize the "Pandora chip" that can control the global financial market. But after going deep into the tiger's den, he discovered that this organization was inextricably linked to the "accidental death" of his parents that year.
Using micro-expressions to see through the traitor's disguise, a modified pistol to penetrate bulletproof glass, and neural responses to predict the trajectory of a sniper - Lu Chen uses textbook-level agent operations to navigate step by step in the triple stranglehold of gangsters, spies, and traitors.
When he uncovered the crazy conspiracy behind the chip to "purify humanity", he was faced with the cruelest choice: Should he destroy the chip and save the world, or use it in exchange for his kidnapped sister?
"I am neither a hero nor a devil." Lu Chen pulled the trigger, "I am just an avenger who wants to take back everything I lost."
