Yu Jinghong and Wei Er are cousins and are married at the same time. However, since they are not in the same area, they do not know each other. Yu Jinghong studied medicine with his father since he was a child, and later went to Xining Prefecture to study medicine. Once he was recommended by someone and cured Wei Er's mother Li's illness, so Wei Er disguised herself as a man and studied with her classmates. Yu Jinghong opposed the opium and trade of opium by teachers and students of the government school, but was expelled from the government school. He then defected to his uncle Wei Qiming and went to Ningbo with the Gansu Army to participate in the Anti-British War. As a result, he became blind. After the war, he returned to Xining Xiyangjiyuan.
