Tao Hua, a girl from the Department of Modern History, accidentally traveled to the war-torn Shanghai of the 1940s, bound to the good and evil feedback auxiliary system, and took over the identity of the underground intelligence agent who had just died.
When she first entered the espionage war, she had no experience and was not familiar with the rules of lurking and the relationship between characters. Her identity as a woman was restricted in every way. Enemy agents were constantly probing and investigating, and the slightest mistake could affect the entire intelligence line. The system follows the balance between good and evil. Tao Hua must punish evil and complete tasks before he can exchange for survival materials, espionage tools and intelligence analysis modules. In the beginning, she only wanted to survive. In the desperate situations of life and death, her mood gradually sublimated from the desire to survive to a firm belief in her family, country and nation.
She used the boss of a trading company as a cover to secretly raise medicines and food and deliver them to the anti-Japanese troops behind enemy lines, earning her the codename "Shadow". She never relies on plug-ins, and every time she transmits information, she carefully arranges it. She repeatedly plays games on the edge of exposing her identity. She must deliver the core information of the enemy Qingxiang within the seven-day countdown, making a difficult choice between completing the mission and protecting her comrades.
Faced with the pressing enemy leaders and undercover plots by traitors, Tao Hua relied on historical knowledge and systematic assistance that transcended the times to repeatedly expose the conspiracy, rescue his comrades, and assassinate traitors. In the end, he grew from an ignorant newcomer to the core person in charge of Shanghai's underground intelligence network, silently guarding the peace of his family and country in the shadows.
