"Yakuza Papers" is a Japanese film series that explores the world of the Yakuza, Japan's organized crime syndicates. The series, directed by Kinji Fukasaku, consists of five films released between 1973 and 1974. It is known for its gritty portrayal of gang life, focusing on the conflicts and power struggles within the criminal underworld. The films are based on the novel "Yakuza" by Goro Fujita and are notable for their realistic depiction of violence and moral ambiguity. The series has gained a cult following and is considered influential in the genre of crime cinema, impacting later films and media that depict organized crime.