In the turbulent times of the Republic of China, undercurrents surged beneath Shanghai's ten-mile foreign market. Agent Fu Yunshen wakes up in a desperate situation in the dungeon, and the cold mechanical voice in his mind announces the activation of the "Spy Shadow Think Tank System"! [Intelligence Insight] accurately analyzes the enemy's psychology and warns of crises; [Thousand-faced Disguise] allows him to perfectly blend into any role, and even the most astute enemies cannot see through it; [Skill Mastery] can master various espionage skills in a short period of time, from eavesdropping and deciphering to fighting and firearms, everything is possible. He managed to escape from the tiger's den by using his weak body, clever words and disguise, and outsmarting the cruel Japanese special commander Takuya Yamaguchi. However, the Japanese army's "Black Crow Project" in Shanghai surfaced, and a shadow fight concerning the survival of the nation began. Fu Yunshen relied on the system to penetrate the enemy camp step by step, destroy the Japanese special rebellion conspiracy, destroy its core communication network, and make the arrogant enemy miserable. However, when the Japanese "shadow" agent Jiro Kato appeared and his keen intuition touched the boundaries of the system's existence for the first time, Fu Yunshen realized that he was facing more than just conventional enemies. The extraordinary abilities brought by the system are accompanied by the risk of mental overdraft and the risk of being detected by unknown special forces. At the critical juncture of national peril, how will Fu Yunshen use this golden finger to become a nightmare for all enemies and a "shadow of the times" in the espionage war with bullets and intrigues? This is a battle of intelligence and courage, a choice between faith and betrayal, a passionate legend of how an ordinary person can change his destiny against the will of heaven and fight for his country!
