Kaiji Ito transfers to Japan after graduating from high school. Incapable to find a job and irritated with society at large, Kaiji spends his days betting, vandalizing autos, and also alcohol consumption booze. 2 years later and also his life is no better. A financial debt collection agency called Endo arrives to gather cash owed. The financial obligation collection agency uses 2 choices to Kaiji: spend one decade paying off his loan or board a gaming boat for one evening to settle his financial obligation & potentially make a watercraft lots of money. Could the debt collection agency Endo really be setting up Kaiji? One way or another, for Kaiji it's mosting likely to be the night of his life.