Li Xiangwan, who has worked at the marriage registration office for seven years, has witnessed all kinds of farces such as marriage scams and fake divorces. Today, a seemingly loving couple came to register. Just as she was about to stamp, the groom-to-be took out his own cinnabar ink pad. Smelling an unusual sweetness, Li Xiangwan immediately triggered an anti-fraud alarm to lock down the hall. Initial tests showed nothing unusual, but undeterred by the risk of being dismissed, she insisted on sending it for gas chromatography testing. While waiting for the results, she checked the man's information in the system, and the content on the screen gave her a shock—this man was hiding a shocking secret.