This is a documentary literary and historical work that introduces the concessions across the country as a whole. It is ordered by time, based on historical facts, with characters and stories as the main content, and uses a variety of techniques such as history, literary history, documentary, novels, essays, and essays to record the four rejections of British businessmen, The development of the Bund by the eight major foreign banks, land leasing turmoil, patrol strikes, foreign bank compradors, joint court trial, Siming Office Incident, the three major tea merchants in the Russian Concession, British judges causing trouble in court, Huang Lishi's human abduction case, Japanese sailor rape case, Russian Volunteer Team The defense of the concession, the famous restaurants in the concession, the election crisis in the Flower Country, the general manager De Cuilin, the brothel madam Xiao Li Ma, the cigarette sellers of the big and small Eight-gut Party, the Four Lines Solitary Army Camp, the Daguangming Cinema murder case, the assassination of Gulangyu Island, the struggle to recover the concession, etc. Historical materials cited include According to the book, the characters and stories are authentic and credible, and the narrative is plain and smooth. It reflects the fierce conflict between various ideological trends in the East and the West during the period of opening up the country to the outside world. It has certain historical and practical significance, and is highly overlooking, historical and readable.