When Li Jin was in her senior year, her mother suddenly cried on the phone and told her that her four-year-old brother had a stomachache and had been in the local hospital for six days. Li Jin asked her mother to clean up and go to the Maternity and Children's Center of City A. When she registered, she saw a doctor named Li Sijin whose name was only one character different from hers. On second thought, she decided to apply for a director number...