Shanghai Beach during the Republic of China. This is the first magic city in the Far East, with flashing neon lights and a ten-mile foreign market, where forces from various countries and religions gather. It also has countless dark corners, where gang fights, drug smuggling, and bizarre murders are undercurrents beneath the glitz. The French Concession, the Public Concession and the Chinese Concession are intertwined. The police force is divided into multiple systems such as patrol rooms and police stations. The rights and responsibilities are confusing and the efficiency of solving crimes is low. It gives space for crime to breed, but it also makes the few people who really take it as their responsibility to solve crimes become more persistent in the chaos.