Pachinko -
If you are interested in the actual game and its role in Japanese society, the paper published in International Gambling Studies is a primary scholarly source.
Community reviewers and scholars highlight how the novel uses the game as a powerful metaphor for life and predestined struggle. Pachinko
It analyzes why pachinko is often legally categorized as "amusement" rather than "gambling" in Japan, which historically downplayed issues of addiction and connections to organized crime. If you are interested in the actual game