Ling Feng (pseudonym/code name: Shadow Blade), an orphan, is a top killer secretly trained by the Kuomintang spy agency. He is proficient in fighting, firearms, disguise, infiltration, intelligence analysis, and psychological warfare. In the early days, he had absolute loyalty and simple patriotic feelings towards the Kuomintang and its leaders, and believed that eliminating "traitors" and "dissidents" was the way to save the country. From the top killer of the Kuomintang to cooperating with the Communist Party, they jointly assassinated traitors and high-ranking Japanese officials.
