A middle aged man, security guard whose daughter and wife left him because of his economical problems. He's been looking for a young gambler to help him since then to beat the Bog and win enough money to buy a house so his wife and daughter will return to him. At first he wants Kaiji to help him beat the Bog but later helps Kaiji defeat the Bog.

Several months after the events of the first season, Kaiji, with his appendages reattached and his debt now run up to 9.5 million yen, is still desperately seeking the elusive big score that will cancel all of his markers. Unbeknownst to him, Hyodo’s company, the Teiai Corporation, is actively searching for Kaiji, and have sent Kaiji’s old “friend” Endoh, who entered him in the high stakes games in the past, to find him. 
The two meet when Kaiji chances to walk in front of Endoh’s car at a stop light, and thinking that he has found the answer to his prayers, Kaiji gets in the car with him. While Kaiji and Endoh are “happy” to see one another, and both want to see Kaiji’s debt repaid, their means to that goal couldn’t be more different. 
Instead of leading Kaiji to the big score, Endoh delivers him drugged and docile to the Teiai Corporation’s secret underground labor camp where Kaiji will have an opportunity to repay his debt… with 15 years of hard labor. 
(Source: Sea Slugs)

**Non anime roles:**
- Metaheavy - Kamen Rider Black RX (TV Series)

After Kaiji's showdown with Chairman Hyoudou at the Starside Hotel, he's forced into labour at an underground mine. With his meagre daily wage, he'll be working for decades to repay his debt unless he does something about his miserable situation.
Kaiji decides to wager his earnings in an underground dice game for a ticket to get out of the mine for a limited period of time. But even if he surfaces, he only has one chance to win it big: by challenging the unbeatable pachinko machine nicknamed "The Bog."



Itou Kaiji, now free of debt but without a penny is leeching himself in Mr.Sakazaki's new house, despite all the flirtings (extreme torment for Kaiji) from Sakazaki's daughter, Mikoko. Sakazaki attempts to kick Kaiji out, even by offering a farewell 'we never knew each other' money of 3000000 yen. While Kaiji ponders himself on the decision, he is visited by Miyoshi and Maeda, two of his 'allies' he had saved from the last part of the series.

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?! 
(Source: batoto.net)

A tribute manga book to the author Nobuyuki Fukumoto with the cooperation of Fukumoto himself. All characters shown in this series are from previous manga Fukumoto has published.

The continuation of the Kaiji series, picking up immediately after the end of One Poker Hen.
 
One Poker has been concluded, with Kaiji emerging as the victor and claiming the 2.4 Billion Yen as a prize! But now, a new problem arises... how can the Asian Trio take it with them with Kazuya's Black Suits gathered right outside the entrance of the warehouse?!
 
Chapter count for this arc begins at 255 in the original tankoubon.

Koutarou Sakazaki