7-year-old girl Zhang Wang and her father Zhang Guohua depend on each other for survival. Although they live in poverty, they still live happily. One day, Zhang Wang suddenly had a nosebleed and went to the hospital for a check-up. She found out that she had acute leukemia and the treatment would cost more than 300,000 yuan. Zhang Guohua, who failed to raise money, cried all day long. Zhang Wang, knowing her family situation, resolutely decided to give up treatment. Reporter Wang Xiaoyue learned about this and rushed to Zhang Guohua's home, only to learn about Zhang Wang's true life experience... After the incident was exposed by the media, Zhang Wang attracted the attention of all walks of life, and donations from all over the country soon came to support her. Soon, Zhang Wang's medical expenses were raised. Feeling the power of social love and the care of countless strangers also made Zhang Wang extremely strong. She received treatment with unimaginable pain and experienced the gates of hell again and again. However, just when everyone thought that Zhang Wang's illness was about to get better, Zhang Wang made a decision that was beyond everyone's expectations...