The 30-year-old Guo Guo is a resolute and strong female supervisor at work, financially independent, mature and intelligent; emotionally, her parents divorced when she was very young, which directly led to her pessimistic attitude towards love, and she firmly believes that "the shelf life of love is only 100 days." Therefore, she would rather die alone than fall in love. People around her always laughed at her because she was too old to get married, so she used alcohol to release her long-hidden pressure on her brother's birthday. She asked her brother's classmate Song Fan on the spot if he liked her, and Song Fan said it bluntly.