Duo Cheng is an author about whom limited public information is available; the library currently holds only one work by this author, Zhan Zhan. Based on the existing information, Duo Cheng's writing centers on the genre of modern romance. Although the number of works is small, it already shows a clear choice of this genre. Zhan Zhan is the representative work currently available by Duo Cheng and serves as the main basis for understanding this author's writing. Due to the lack of public material on the author's life and writing career, it is difficult to offer a comprehensive assessment of the author's style and background. Nevertheless, the genre of Zhan Zhan indicates that Duo Cheng tends to develop emotional narratives against the backdrop of contemporary urban life, focusing on the emotional relationships and everyday circumstances of the characters. For an author with only a limited body of work, the thematic orientation shown in a single work already provides an important clue to the author's creative positioning. Readers who wish to learn more about Duo Cheng may do so by engaging with the text of Zhan Zhan, while further information about the author will depend on the supplement and updating of public materials in the future.