A report in a weekly magazine shocked the financial world, revealing a scandal in which a female clerk at a large bank was sexually harassed by a branch manager.Various signs and clues pointed the finger at Tokyo Daiichi Bank, triggering widespread concern and discussion from all walks of life.

Against this background, experienced auditors Soma (played by Takaya Kamikawa) and Xiao Wu (played by Xing) were ordered to conduct an investigation to find the victimized female operator and uncover the truth of the incident.

As the investigation deepens, they gradually discover that the victimized female clerk is not a stranger, but Xiao Wu's friend Natsuko (played by Aki Maeda) who joined the company at the same time.This made Xiao Wu feel shocked and angry. She could not accept that her friend had suffered such misfortune.

Driven by anger and sadness, Xiao Wu and Xiang Ma became more determined to track down the truth.They began to investigate Natsuko's working environment and interpersonal relationships in depth, trying to find direct evidence and witnesses of sexual harassment.