Chen Yu, a college student in the history department, accidentally traveled to the war-torn Xuzhou battlefield in 1938, and activated the "Patriotic Spy War and Anti-Japanese System" in a desperate situation.
He was timid and fearful by nature, but he was forced to take up arms under the iron heel of the Japanese invaders. He relied on systematic crisis warning, accurate enemy killing and his own historical knowledge to hone and grow in the cruel battlefield. From a trembling scout, he gradually transformed into a calm and decisive intelligence agent.
From cannon fodder on the battlefield to an invisible blade in Shanghai, Chen Yu used cowardice as a shield, wisdom and courage as a spear, relied on the anti-Japanese system to unlock his potential step by step, and made extraordinary contributions to the Anti-Japanese War. In the dark island, he used intelligence as a blade to pierce the heart of the Japanese invaders, protect the country's compatriots, and witness every inch of light before dawn.
