In 1938, the Japanese army fully invaded China and Jiangcheng fell. The anti-Japanese corpsman "Jackdaw" assassinates traitors and top Japanese military officials, and engages in a life-and-death game with the famous U. S. High-tech detective Ichiro Matsuda. The collision of family and country interests and personal emotions, the intertwining of the secret war against Japan and the inheritance of opera.
