Xu Sanguan is a fictional character from the novel "Xu Sanguan" written by Chinese author Yu Hua. The story is set in China and follows Xu Sanguan's life as he navigates the challenges of family, society, and personal struggles during the tumultuous times of the 20th century. The character is known for his resilience and determination, often facing hardships with a sense of humor. Through his experiences, the novel explores themes of love, sacrifice, and the impact of historical events on individual lives, reflecting the broader changes in Chinese society.