"Chronicle of a Blood Merchant" is a novel by Chinese author Yu Hua that explores the life of a man named Xu Sanguan, who sells his blood to support his family. Set in post-revolutionary China, the story delves into themes of sacrifice, survival, and the struggles of ordinary people during a time of social change. The narrative follows Xu's journey as he navigates the challenges of poverty and the moral dilemmas of his choices. Through his experiences, the novel highlights the complexities of human relationships and the impact of economic hardship on personal lives, reflecting broader societal issues in China.