May 1949 - early 1950s. The beacon smoke has cleared across the land of China, and the five-star red flag is flying. The smoke of Shanghai's liberation has not yet completely dissipated. The new republic is in desperate need of revitalization, and at the same time, undercurrents are surging. The remnants of the defeated Kuomintang, lurking enemy agents, and the dregs of the old era collided fiercely with the order of the new society. The world has entered the early stages of the Cold War, and the secret war has shifted from the blood and fire of hot war to the silent competition of espionage and technology.
