Xiaoqiang is a second-year junior high school student in a middle school in this city. His 14-year-old mother Zhang Wei teaches in the same school. She is 36 years old, 155 cm tall, and weighs 80 kilograms. Her husband died in a car accident a few years ago. She was left with her child alone. She also has a 38-year-old sister, Zhang Ping, who works as a manager in a bank. She divorced her husband a few years ago. She has a 16-year-old son, Xiaoqiang, who has no father since childhood, has a cowardly personality and is not good at speaking. She is always bullied by classmates in her class. Zhang Wei is also helpless about this. She can't always take care of him. She always has to face society in the future. So sometimes Xiaoqiang complains to her and doesn't care, just to make Xiaoqiang become stronger.