In 1935, in Nanjing, Zhou Ning returns from studying in Germany after recovering from a serious illness, and takes a post in the Nanjing government.
But by then, she has lost contact with the organization. She can only lie low while using intelligence from the System to eliminate traitors, save her compatriots, deliver messages, and handle logistics.
With her pocket dimension, she lies low here in silence, but one crisis after another soon follows...