"Kaiji, a total loser, lives his life gambling and making small debt. One day, a loan shark visits Kaiji claiming that he is a cosigner to his ex-coworker's debt, which amount Kaiji could never cover.
"You can wipe the debt away in one night" - the loan shark seduces Kaiji putting him on a luxury liner, with young losers like himself, all planning to win to get off this ship without debt, not knowing the ship is a harsh and risky battleground of life-and-death game."