In 1936, Shanghai was in a turbulent situation.
Military agent Chen Shu accidentally traveled through time and awakened the "Spy Sea Hidden Dragon" system.
Portable space, skill exchange, intelligence deduction... All the golden fingers are open!
He walks on the edge of the knife and breaks the situation between spies, traitors, underground parties and other forces.
From eliminating Japanese spies to going deep behind enemy lines, let's see how modern souls play with the spy war of the Republic of China and create an alternative legend!
