There is no Duan in history, but there is 1 person named Duan Zhongyu. His experience is similar to the segment in the play, and the prototype of the segment is probably Duan Zhongyu.

Duan Zhongyu (1904-) was born in Lixian County, Hebei Province. Major general. 193 1 graduated from the 9th Nanjing Central Military Academy and 17 Army University in May. The Communist Party of China (CPC)'s underground party member. 1948 1 1 used to be the deputy commander of the Kuomintang Shanghai Port Command, the garrison commander of Shanghai Railway West Road, and the political commissar of the Shanghai Municipal Government. 1May, 949, uprising in Shanghai.

Duan Zhongyu, a retired army cadre, is an unsung hero on the special front of the liberation of New China. Duan and Duan Zhongyu were mentioned in the large-scale documentary "Unknown Hero" of CCTV. They are all underground members of the Communist Party of China, 1 is the Major General Gao Shen around Chiang Kai-shek, and 1 is the Deputy Commander of Major General Shanghai Port and the commander of railway transportation. They used their prominent position to fight bravely and tactfully in the wolf's den.