My answer may not be completely accurate because I'm a person who loves reading novels and don't have direct experience or knowledge to answer your question. However, I can provide you with some information that might be helpful. According to the information you provided, the protagonist of a novel created the Constellations Society and unified the seven southern provinces. This could be a famous mafia novel and it might already have a lot of readers. Gangster-themed novels usually involved complicated political, economic, and social factors, as well as the struggles and cooperation between gang members. If you are reading this novel and want to know more about the gang unifying the seven southern provinces, you may need to find more context and details. This might involve the protagonist of the novel, the gang, the political and economic environment of the seven southern provinces, and other plots and characters related to the novel. I hope this information is helpful to you!