Shen Nian goes undercover at a branch company under an assumed identity for three months, quietly gathering evidence. Despite being ostracized and deliberately harassed by her colleagues, she stands firm in her principles. At the annual company meeting, she publicly exposes internal misconduct and announces a cleanup of the company's parasites, bringing the truth to light with facts and figures. The story focuses on integrity in the workplace and upholding rules, portraying a young woman who stands by justice and refuses to compromise under pressure.