[Travel + System]. Modern youth Chen Jiu traveled to Shanghai in 1936 and became a gangster at the bottom of the Pier Gang. Activate the "daily intelligence sign-in system" at the moment of life and death. With the money, intelligence, skills and key information you sign in every day, you can start from resolving gang infighting and skillfully maneuver among spies, military commanders, underground parties, youth gangs and concession patrols. He used modern knowledge and systematic early warning to rob arms, intercept intelligence, and eliminate traitors. He gradually integrated underground forces and established the "Shadow" intelligence network covering Shanghai. From an unknown soldier to the "Ninth Master" who awes all parties, he finally joins the Anti-Japanese War and fights for the survival of the nation.
