Before Jia Jia's accident, Jia Yucun had a close relationship with Jia Jia's men, especially Jia She and Jia Zhen. Jia Zheng only appreciated and cherished Jia Yucun's talent, and there was no congenial factor. At that time, after learning the news of Jia Yucun's accident, Jia Lian's entry once said with Lin Zhixiao's entry that Jia Yucun would not be an official for a long time, even to implicate Jia Fu.

Jia Fu fell, and Jia Yucun immediately took refuge in Zhongshun Wangfu, and went to Jia Fu's property with Zhongshun Wangfu's people. Jia Yucun did this to Jia Fu, and it was a complete tragedy, which was in line with his snobbery.

Jia Yucun's personal introduction:

Jia Yucun is a virtual figure who appeared in a Dream of Red Mansions. He is an outline figure, but by the time he got there, his ancestors' foundation had been exhausted, and his population had declined, leaving him alone. He wanted to go to Beijing to seek fame, but his bag was empty, so he had to settle down in Hulu Temple in Gusu City for a while and make a living by selling words every day. Later, thanks to Zhen Shiyin's help, he had the money to go on the road, was admitted to Jinshi, and was promoted to magistrate.

Soon he was dismissed because of greed and favoritism, and was hired as the first teacher of Lin Daiyu in Lin Ruhai, and he was attached to Jia Zheng through his relationship with Lin Ruhai. With the help of Jia Zheng, he was reinstated as an official, but he was not right as an official, and sentenced a gourd case to be a confused case. Later, this case was known to the world, because it was too small to lock the shackles.