They have a good friend named Huang Tang, who bears a grudge because Wu Dalang, an official, doesn't want to take advantage of his position to support him, and spreads rumors about the couple everywhere. After hearing the rumor, Shi Naian ignored the facts and wrote it directly into the book. Later, with the wide spread of the book "The Water Margin", the reputation of Pan Jinlian and his wife was deeply vilified. Affected by this incident, Pan and Wu in Qinghe County, where Wu Dalang and Pan Jinlian are located, have not been married for hundreds of years.

The real Pan Jinlian in history is not Yi De at all, but is famous for its virtue. Pan Jinlian was born in a family of local officials in Qinghe County, and her father was a state-owned official in Zhou Bei. Pan Jinlian, who was educated since childhood, is a well-known local girl. And her husband, Wu Dalang, though from a poor family, is outstanding in learning, literate and armed. Wu Dalang worked in Pan Jinlian's home for a living, so he was appreciated by Yue Fei in the future. Later, under the decision of Yue Fei, Pan Jinlian married Wu Dalang, and they fell in love for a long time.

Later, Wu Dalang successfully passed the Jinshi exam and was sent to Yanggu as a county magistrate. In the meantime, a friend named Huang Tang of Wu Dalang asked him for help because of a fire at home. Wu Dalang was helped by this friend before he made his fortune, so he was treated with good wine and food after seeing Huang Tang, but he didn't mention anything about support from beginning to end. Huang Tang was very angry because of this incident, so he spread rumors about Mr. and Mrs. Wu Dalang everywhere on his way home, saying that their feelings were not harmonious and Pan Jinlian had an affair in private.

However, when Huang Tang returned home, he found that the house destroyed by the fire had been completely new, only then did he know that Wu Dalang had not helped him. Although Huang Tang felt very sorry at this time, the rumors he had spread before have been withdrawn. Even Huang Tang didn't expect that the rumor he said would spread so fast that it was finally heard by Shi Naian who wrote the book and written it in the book. The reputation of Mr. and Mrs. Wu Dalang was seriously damaged by the rumor that he misunderstood for a moment.