A spin-off of the manga Akagi depicting Washizu Iwao in the pre- and early post-war period.

Kaiji and Kazuya face off against each other in a high-stakes game of "One Poker," a modified version of standard poker. Kazuya sets forth a gamble of 2,000,000,000 yen! How will Kaiji survive?! *Chapter count for this arc is 101-254 in the original tankoubon.*

Ne'er-do-well Kaiji Itou's shiftless existence is suddenly rattled by a visit from the yakuza. Burdened by debt and resentment, Kaiji is coerced into gambling for his worthless life. As the stakes grow higher and the rules become increasingly more bizarre, Kaiji must finally take the future into his own hands! (Source: Denpa) *Note: Won the 22nd Kodansha Manga Award for general manga in 1998.*

Kurosawa is sick and tired of his boring, ordinary life growing old as the less popular site foreman in Anahira Construction. The turning point comes when his 44th birthday comes along, and no one remembers or celebrates with him. Realizing he lived a life without drive or purpose, Kurosawa tries to go past his comfort zone to turn his life around. Will his newfound shenanigans help him or hurt him when he gets caught up in fights with delinquents? (Source: Manga Planet)

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?!

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.*

Ukai Zero saves three troubled teens from a Suicide Website, and together chooses to work as 'Robin Hoods' of society. However, one of Zero's friends are caught by an organization he got in trouble with, and Zero is forced to enter a gambling competition hosted by a rich, rotten old man who is looking for talented gamblers to be his rep player. The reward money? ONE TRILLION YEN. *Note: Resumed serialization as Tobaku Haouden Zero Gyanki-Hen on 7/13/2011 after a 2.5 year hiatus.*

Two miles up in the unforgiving heights of Mt. Owari, hikers and friends Asai and Ishikura are hit by a blizzard and lose their way. Injured and sure of his imminent death, Ishikura confesses to killing a member of their university hiking club five years ago. However, Asai then stumbles upon shelter and carries them both to safety, only to realize that the confession has forever changed their relationship—and that the brutal elements may no longer be the most deadly threat around. (Source: Kodansha USA)

While mahjong is a game that is often played with family and friends, it is also a game that is played in the darkest corners of society. Nangou is a compulsive gambler who has accumulated debt over three million yen. In a last ditch attempt to clear his record, he decides to wager his life on a game of mahjong with the mafia. Unfortunately, as the game progresses, Nangou only moves further from the prize and closer to death. When all hope seems lost, the game parlor is suddenly intruded upon by Shigeru Akagi, a young boy on the run from the police. Desperate to turn the game around, Nangou hands the game over to Akagi after teaching him a few of the rules. The mafia can only smirk as Akagi sits down to play. However, they soon come to learn that Akagi is a natural born gambler. An imposing figure who does not fear death. One who is destined to become a legend.

Takashi Ten is living his life as a rep mahjong player. A kind person at heart, he also possesses an ingenious talent in mahjong. One day Ten meets Hiroyuki Igawa, a student player who 'plays by logic'. Hiroyuki is overwhelmed at Ten's playing style which involves anything besides logic, and soon becomes one of his close friends. Being the rep player he is, Ten had to play against some Yakuza. The chance of victory seemed to be on Ten's side, but then the yakuza decide to call their secret weapon, a legendary rep player called...