At the end of the Republic of China, foreign powers invaded and there were many spies. He Wenqing was ordered to go into danger, and he and his best friend Xu Guanlan went behind enemy lines and were ordered to search for key information. In the clouds, he met Su Zhuyin, a double agent in the enemy camp. Both the enemy and our side have exhausted their mechanisms and conspiracies, and the black hands behind the scenes are pressing harder step by step. In a life-and-death battle where authenticity is difficult to distinguish and life hangs on a thread, the protagonists repeatedly escape danger with humor and wit, and establish an indestructible friendship and growing love in the action. Each volume independently focuses on different tasks, and the clues are upgraded step by step, leading to the ultimate puzzle. The three volumes go together to form a bold, ups and downs, compact and humorous spy war legend.
