The unique old Tianjin Wei, the unique Tianjin people, the unique language, the unique life, culture, customs, etiquette, thoughts and three views. The novel combines the CCP underground party, mountainous armed forces, Kuomintang central unification agents, military unification agents, the last emperor Puyi who lived in Tianjin after his abdication, old people and children of the former Qing Dynasty, warlords, police detectives, spies, members of the Anqing Gang, social sages, patriotic monks, literati, businessmen and civilians, Japanese military police, Japanese special high school agents, detective teams, The distinctive characteristics and complex human nature of the traitor Yuan Yuan and the various people in the garrison, as well as the exciting and exciting stories between them, the twists and turns of the plot, the hasty response and witty resolution of emergencies, especially the changes in struggle relationships and methods of struggle caused by changes in different periods and their different time periods, give people a sense of uncertainty and ups and downs. In addition to underground struggles and armed struggles, it also involves financial wars, trade wars, cultural wars, etc. That few people know about, which are also unique.