Junket Bank

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 a debt of 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.

In the year 1947, the people of Shinjuku are down on their luck. With little money to buy food or necessities, some resort to gambling in order to survive. Traveling Tetsuya chooses to spend his time at Mahjong parlors where he is wiping the floor clean with his adversaries. However, when Tetsuya meets the intensely skilled Boushu-san, he realizes that his skills are still lacking.

When three complete strangers, Mishiba Toki, Nakajyo Nobuto and Saitoh Kazuo, are hired by a corporation to compete in the Bus Game, an illegal dog-fight conducted in strict secrecy, they are given the team code of "Team AAA" (Triple Anonymous). This group of three who differ entirely from their living environments to their personalities have to work together effectively, but without mutually wiping out their mistrust of each other or prying into each other's privacy. They only have one point in common - each of them need a large amount of money for their individual circumstances. To get the money, they must play in the game despite their very own lives being at stake.

During daylight hours, an exclusive, elite private school prepares its illustrious students for careers in business, politics, and high society. But when darkness falls, the halls of this esteemed establishment transform into an underground gambling den where bright-eyed youngsters learn the timeless art of bluffing, backdoor dealings and social manipulation. In this school for the rich and elite, money is power, and the tyrant of the betting books rules with an iron fist. So when the beautiful Yumeko Jabami upsets the academy hierarchy with her voracious appetite for the thrill of the gamble, the entire student body mobilizes to send her house of cards tumbling down.