The folk story Cai Erlang, Daughter of Zhao Zhen, is a masterpiece of the ungrateful love drama of the Song Dynasty. After Cai Erlang won the championship, she abandoned her parents and married her husband. His wife, Zhao Zhennv, supports her in-laws independently in her hometown. In the famine year, her parents-in-law starved to death, so Zhao Zhennv bought a funeral as she wished, wrapped herself in a skirt and built her own cemetery. Later, a pipa fell in the air, and Zhao Zhennv went to Beijing to find her husband with it on her back. When he found Zhongjing, Cai Erlang not only denied Zhao Zhennv, but kicked her to death. In the end, Cai Erlang died in a thunderstorm. This story was widely circulated among the people in the Song and Yuan Dynasties.

Cai Erlang and Cai Bozhen were famous literati Cai Yong in the late Eastern Han Dynasty, but in folklore, Cai Bozhen only borrowed the name of a historical figure.