In the movie Loyalty and Betrayal, the martyr and Feng's descendants, prototype figures, were introduced by the writer Pei Gaocai, and held the certificate of revolutionary martyrs issued in that year to "recognize relatives" in Wuhan Archives. A revolutionary love legend that has been dusty for more than half a century has been made public for the first time.

Because martyrs often took part in the revolution under false names and died young, their descendants did not know their revolutionary partnership, and the two descendants had no contact. 192 1 The Genealogy of Chua only records Wu Jinmei, the first wife, without Feng's name. However, when the writer Pei Gaocai wrote Biography of Cai Yichen, he found that the two martyrs had developed from pretending to be husband and wife to revolutionary partners before their sacrifice through the verification of the original files on both sides of the Taiwan Strait and the former Soviet Union, and the identity of husband and wife had been made public in the party. He wrote this discovery into his new book. Feng's granddaughter saw her biography online and told her family the news in time. Under the introduction of Mr. Pei Gaocai, Feng Zhimin, Feng's nephew, and his wife were able to meet their grandchildren Cai Yasheng and Cai in the municipal archives.