New hire Lin Sheng is relentlessly exploited by workplace gift-giving rules. Departmental contributions start at 1,888 yuan, but when she gives just 200 yuan, her supervisor publicly humiliates her by throwing the money at her. Desperate to save enough for her mother's surgery, Lin Sheng neither argues nor complains. Instead, she screenshots and keeps records of every payment. She discovers that her supervisor and her husband use their positions to pressure the entire department into paying for their banquets, extorting 370,000 yuan over eight years. Three waves of reckoning follow: falsified accounts are exposed, victims come forward with their figures, and the complete ledger is slammed onto the table. The couple turn against each other, but their excuses are useless. They are forced to return every ill-gotten penny, dismissed, and handed over for investigation. Lin Sheng finally secures her mother's surgery fees, and a new policy exempting new employees from extravagant gift contributions is established. Those who treated courtesy as a means of keeping score ultimately find themselves held accountable down to the last cent.