In bustling cities, banks, as the core of the financial system, often hide many unknown secrets and struggles.But in this world full of competition and conspiracy, two players vowed to protect the weak, challenge evil forces, and fight for justice.They are Mai Hanasaki and Ken Soma.

Mai Hanasaki, an ordinary bank clerk, has won the respect and trust of her colleagues with her intelligence and hard work.However, she is not satisfied with the status quo and is eager to show her talents on a larger stage.By chance, she was transferred to the audit class of the head office and started a new career.

At the same time, Takeru Soma, a senior operator, was demoted due to a mistake.His career once hit a trough, but he did not give up, but chose to start over in the audit class.It was this demotion that gave Ken Soma the opportunity to partner with Mai Hanasaki to face various challenges within the bank.

During the work of the audit team, Mai Hanasaki and Ken Soma gradually discovered the evil forces within the bank.They used their power to seek personal gain, bullied weak employees, and seriously undermined the bank's fairness and justice.Faced with these evil forces, Mai Hanasaki and Takeru Soma decided to join forces to fight and protect those colleagues who were treated unfairly.