Underworld novels
Underworld novels usually described a gang organization, which included violence, crime, love, betrayal, competition, and other elements. These novels often depicted the leaders of gangs, the relationships between gang members, the management methods of gangs, and the scenes of gang activities. Underworld novels had a wide range of topics, including various types of crime stories such as robbery, murder, kidnapping, drug trafficking, and so on. It could also include love, friendship, family, and other plots that might affect the gang. Underworld novels often involved some complicated interpersonal relationships such as the friendship between gang members, the relationship between gang leaders and their subordinates, and the betrayal and cooperation between gang members. These plots can help readers better understand the management methods of gang organizations and the mentality of gang members. Underworld novels could also include some moral and ethical plots, such as the conscience of gang members, the sense of responsibility of gang leaders, and the social responsibility of gang organizations. These plots can help readers better understand the relationship between gangs and society.