Lin Mengyao, a modern urban white-collar worker, accidentally activated the "Fantasy Urban Navigation System" on an overtime night and was involved in the turbulence of time and space, falling to the war-torn Shanghai in 1937. Her ordinary body carries a mysterious system that can enhance her abilities and exchange for rare items. She relies on the system's crisis warning and skill exchange to survive under the knife-edge of Japanese spies. From a confused time traveler to a spy lurking in the dark, Lin Mengyao gradually discovered its connection with the overall situation of the Anti-Japanese War and the mysteries of time and space as she completed the system tasks. Every choice she makes is rewriting her personal destiny and quietly turning the gears of history. A legend that combines fantasy power and passionate spy war begins amidst the smoke and shadows.
