Well, the drug dealer in 'Pulp Fiction' is an important part of the movie's fabric. He's not just a simple villain. His character helps to explore themes like power, greed, and the consequences of a life in crime. He has a distinct personality that stands out among the other characters, and his presence is constantly felt throughout the different storylines in the movie.
In 'Pulp Fiction', the drug dealer's girlfriend is a complex character. She is involved in the seedy underworld world that the drug dealer inhabits. Her actions and presence add to the chaotic and unpredictable nature of the story.
The novel that he recommended was Return to Kirin, which had the main character of an undercover drug dealer. This novel tells the story of the two male protagonists beginning to solve the case and pursue the truth. Other than " Return to Kirin," there were no other search results that explicitly mentioned novels with two male leads and undercover agents.