" Village Teacher " was a science fiction novel by Liu Cixin. It told the story of a Chinese village teacher and his students who were facing the horror of the end of the world and the suffering of an unknown virus to explore the future of mankind together. In this story, Li Yunfeng, a village teacher, was a scientist with a strong sense of mission and responsibility. He was committed to researching a new virus that could save mankind and led his students on a dangerous and unknown journey. Through this story, Liu Cixin explored the sense of responsibility and mission of human beings and the power of human unity and cooperation in the face of crisis. At the same time, it also depicted a futuristic world full of imagination and technology, making people feel the close connection between technology and human destiny.