The trend of changing the gender of female characters in domestic light novels was to change the gender of the original female characters to create more attractive and masculine characters. The emergence of this trend was welcomed by some readers, but there were also some people who held different views on this change. The evaluation of the sex change trend should be viewed from a different perspective. First of all, as a literary work, it could create more diverse and open characters, making it easier for readers to accept and like these characters. Secondly, the trend of sex change could also bring some new inspiration and creativity to the novel, making it more colorful. However, there were also some negative effects of the sex change trend. Some people believed that the trend of sexual transfiguration made the female characters in the novel too masculine and lost their original gender characteristics and image. In addition, some readers were worried that this change would negatively affect the gender identity and character creation of female characters. Generally speaking, the emergence of the trend of sexual transference in domestic light novels is beneficial, but it is also necessary to pay attention to balance and respect the original gender characters and images in the novel to avoid unnecessary trouble and harm to the readers.