King of Sha-kin Collection

In late 90s Osaka, three people from various walks of life meet by chance. They team up to orchestrate a complex financial con targeting crooked businessmen in an attempt to solve their respective financial woes.

A normal banker decides to take on the loan sharks and yakuza.

Mizunuma is struggling to pay back his debts as always, and flies to Okinawa in an attempt to illegally sell a diamond that he confiscated from the yakuza to a jewelry broker.

Naito is serving time for his aggressive fundraising in the securities world, but returns to Osaka after completing his sentence. Although he wants to get clean, Oyodo Shinkin Bank has tasked Naito to raise funds.

Takao, the owner of a coffee shop and brother-in-law to Anzai, the assistant manager of Hikari Bank, Osaka central branch, is caught in a scam by an online financial service.