The live-in son-in-law in the novel always liked to hide his identity because of the following reasons: 1. To conform to the plot setting of traditional novels. In traditional novels, live-in sons-in-law were often seen as an unequal status because they usually lived and worked in the wife's house rather than playing the main role in the family like traditional husbands. Therefore, a live-in son-in-law might feel the need to hide his identity because his social status was lower than his husband's. 2. To shape the character's character. The characters in the novel may hide their identities because of low self-esteem or other reasons, which can better shape their character and complexity. To increase the tension of the plot. Concealing one's identity in some novels may lead to danger or challenges, which can increase the tension and drama of the plot. In order to conform to the narrative style of the novel. In some novels, the author may conceal his identity to create a mysterious or magical atmosphere, which can enhance the narrative style and appeal of the novel. The live-in son-in-law in the novel always liked to hide his identity. It could be because of the influence of the traditional plot setting and the narrative style of the novel, but it could also be due to the need for character shaping and plot.