Deng Huizhen was admitted to a top-tier university, only to be sold by her parents for 300 yuan to an aging bachelor in a neighboring village. Eighteen years later, she had raised her daughter, Yang Tianmei, on her own. When Tianmei needed travel funds for the college entrance exam, Deng Huizhen asked her brother-in-law, Yang Wenxue, for the survivor's pension he had misappropriated; instead, Yang Wenxue sold Tianmei to a local thug to cover his own son's tuition. Deng Huizhen fought desperately to rescue her daughter. Tianmei scored 760 points, becoming the national top scorer, while Yang Tianxue scored only 710 and was caught cheating. The village chief and Yang Wenxue’s family falsely accused Tianmei of cheating, even threatening to desecrate her ancestors' graves to force a confession. Officials from the Education Bureau arrived just in time to confirm that Tianmei was the true top scorer and that Yang Tianxue was the one who had cheated. Mother and daughter were finally vindicated, their honor restored, and they went on to live a happy life.
