Jia Zhen is the actual head of Jia Jianing's government and a hereditary title. Qin Keqing is Jia Zhen's daughter-in-law.
There is almost no positive description about the relationship between Qin Keqing and Jia Zhen, especially the "special relationship". A little innuendo, but not much, limited to "guess".
It is said that in the thirteenth reply of A Dream of Red Mansions, "Qin Keqing sealed the dragon and banned the captain", the original reply was "Qin Keqing mourned the tower of heaven", but this was the only reply. What is the specific method of mourning and with whom? There is no evidence.
The relationship between Jia Zhen and Qin Keqing has been seriously questioned. According to clues and associations, so many points can be found.
The most typical clue, which is also considered as the clue with the highest frequency of evidence, is that Jiao Da, the groom of Ningguo Mansion, was drunk because he was dissatisfied with the work assigned to him. He once fought with Old Master Q, saved Old Master Q from the dead and scolded Old Master Q. The rise of scolding scolded all the masters and slaves of Ningguo House.
As the saying goes, there is no windtight wall. No matter how secretive you are, the truth will come out one day. The scandal between Qin Keqing and Jia Zhen was finally exposed by the drunken scolding of the old servant Jiao Da. From then on, the beautiful image of Qin Keqing, the first proud daughter-in-law, was reborn and collapsed in the eyes of Jia Mu. Finally, she died.
How did the affair between Qin Keqing and Jia Zhen come out? Among numerous puzzles and speculations, the reviewer of Cao Xueqin's book, Zhi Yanzhai, left many clues, the most convincing of which is this one:
"Qin Keqing's Pagoda of Mourning for Heaven" was written by the author with the pen of history. Because the old man has a soul to support the funeral of Xifeng Jia's family, can he enjoy all the wealth? Although useless, its meaning is sad and convincing, so I forgave it. Because the Western Qin Dynasty was ordered to delete the articles on "Legacy Chai" and "Change Clothes", only ten pages were returned, and the section on Tianxianglou was deleted, omitting four or five pages.
Among them, the criticism of Tianxianglou, Yipin and changing clothes shows that Jia Zhen and Qin Keqing have actually exposed this matter themselves. However, the specific plot was deleted by Cao Xueqin and can only be speculated and restored through some clues.