This book is an anti-Japanese military novel by Liu Meng. During the war of resistance against aggression, KMT intelligence agents are repeatedly killed by the henchmen of Japan agent Nakamura Ichiro. Dai Li, director of the bureau of investigation and statistics of the military council of KMT takes the advice of Mao Renfeng, and orders Chen Yiming, a KMT military officer who is imprisoned in Xifeng Concentration Camp for having secret communication with the Communist Party, to form a death squad and participate in the combat. Organized by Chen Yiming, Cold Blade, Scholar, Swallow Six, Small K, Teng Yuan'gang, and Butterfly set up a ""Black Cat Death Squad"".