Si Cheng's bedmate in the dormitory. In Si Cheng's previous life, Zhang Jianfen was admitted to No. 1 Middle School but failed the college entrance examination on her first attempt. After repeating a year, she was admitted to a good first-class university. She became a gynecologist working at the best hospital in the city. Si Cheng kept in touch with her throughout high school, college, and until her car accident. She has a good relationship with Si Cheng.
