
Kaiji Itou is a bum who's been living in Tokyo for 3 years and gambling his life away, then one day a shady man named Endou Yuuji comes to his home asking for Takeshi Furuhata. It turns out that his friend Furuhata disappeared and left Kaiji with the debt of ¥3,850,000, which will take him 11 years to pay off. But Endou has a proposition for him; he wants Kaiji to participate in the gambling event on the Harumi Wharf.
Kaiji Itou is a bum who's been living in Tokyo for 3 years and gambling his life away, then one day a shady man named Endou Yuuji comes to his home asking for Takeshi Furuhata. It turns out that his friend Furuhata disappeared and left Kaiji with the debt of ¥3,850,000, which will take him 11 years to pay off. But Endou has a proposition for him; he wants Kaiji to participate in the gambling event on the Harumi Wharf.

The event that will decide the fate of Kaiji and the rest of the debtors, onboard the Espoir, is a game called "Restricted Rock Paper Scissors". Following the explanation, Kaiji is then approached by Funai (the other person who borrowed 10 million) and it turns out that he's a repeater. He wants to team up with Kaiji and Kaiji accepts, not knowing what he just gotten himself into.