In post-bubble Japan, an employee for a major bank is promoted to the position of corporate auditor, bringing his unwavering sense of justice with him.
When amiable bank manager Shuhei Nozaki's branch closes, he lands an auditor position at the head office, where he soon learns of a dubious deal.
Nozaki’s investigation into Tanida Agency continues to ruffle feathers. Ozora Bank president Kyogoku calls on his imposing associate Takeda for help.
Nozaki meets branch manager Shoko Tachikawa, who approaches him with information on another shady deal, this time involving a seized building.
Inspired by Takeda’s suggestion, Tachikawa forms an ambitious plan. Later, Ando is suddenly approached outside his home by an intimidating figure.
Nozaki rushes to the scene to check on Ume. With his investigation upsetting some very dangerous people, Nozaki makes plans to protect his family.
After public prosecution investigators storm Ozora Bank in search of evidence, Nozaki is frustrated by a lack of cooperation from his superiors.
When Kyogoku learns of an upcoming merger between Ozora Bank’s competitors, he swiftly seeks Takeda’s help in establishing a partnership of his own.
As Kyogoku moves to merge the banks, Nozaki pulls in the other direction. Deviating from his typical methods, Nozaki appeals to Takeda for support.