A direct sequel to Tobaku Datenroku Kaiji, picking up immediately after Part 3 ends. After his tremendous victory in 2-Player Mahjong against the villainous President, Muraoka Takashi, Kaiji is being driven home by Kazuya, the son of Chairman Hyoudou. However, in the car, Kazuya asks Kaiji if he would be interested in one more gamble that night, and Kaiji accepts. What surprises lie in store for our dear Kaiji, and what will the gamble be?!

Please Note
The Kaiji series as of now is divided into 5 parts, and this is the 4th of those parts. The series follows this order:

Part 1: Tobaku Mokushiroku Kaiji (Has an Anime Adaptation, but Manga is not fully translated)
https://bato.to/comic/_/comics/tobaku-mokushiroku-kaiji-r1874

Part 2: Tobaku Hakairoku Kaiji (Has an Anime Adaptation, and Manga is fully translated)
https://bato.to/comic/_/comics/tobaku-hakairoku-kaiji-r5071

Part 3: Tobaku Datenroku Kaiji (Not yet animated, Manga is fully translated)
https://bato.to/comic/_/comics/tobaku-datenroku-kaiji-r923

Part 4: Tobaku Datenroku Kaiji - Kazuya-hen (Not yet animated, Manga is fully translated)

Part 5: Tobaku Datenroku Kaiji: One Poker Hen (Not yet animated, Manga is being translated)
https://bato.to/comic/_/comics/tobaku-datenroku-kaiji-one-poker-hen-r14151