Chenchen, a 9-year-old mentally retarded child, can't go to school. My mother died a few years ago, and my father Xie Changgeng went to work and had to lock him at home when he went out. A small glass window is the reason why he touched the world. Xie Changgeng is both a father and a mother, and he has a stupid son. The heavy pressure was unbearable for him. He often feels severe chest pain, and the hospital diagnosed him with cancer. He wandered around with his son. Then, he not only planned to die by himself, but also wanted to take his son away, and didn't want to leave Chen Chen alone in the world. His plan didn't come true, and the president of the factory union sent him to the hospital for surgery. Tie Shi, the district civil affairs director, took over his father's job, even though he was still a young man and not married. Iron Stone sent Chen Chen to the kindergarten of Qixing School. The class is full of mentally retarded children, and Chen Chen and Niuniu have become good friends. Their teacher, Miss Ye, is a gentle and kind girl. Together with Stone, she devoted all her efforts and energy to developing the intelligence of these children. Chen Chen learned Chinese Pinyin and went to the hospital to read "Hello, Dad". Chang Geng was so excited that tears filled his eyes. Niu Niu, who seldom gets maternal love, also shocked her mother by drawing a picture called "Mom". Chang Geng was discharged from the hospital, and he was assigned a new house in the factory. Visit the Planetarium with Teacher Ye. When she came back, Chen Chen gave her father a beautiful morning star. Chang Geng asked Chen Chen to bow to everyone, thanking teachers, uncles and aunts, grandparents for their concern.