Zhuang Yan is an author about whom little public information is available. To date, only one work is known under this name, Mo Cheng zhi wei Yewan (Do Not Call It Night), which is classified under foreign literature. Because reliable information on the author's nationality, dates of birth and death, education, and writing career is lacking, no further account of Zhuang Yan's life can be given. Judging from the existing entry, this work is the main basis for understanding Zhuang Yan's writing; its subject matter and style show features of translated foreign literature or cross-cultural writing, and the title itself carries a restrained, somewhat distant literary quality. For readers interested in foreign literature, the name Zhuang Yan is currently associated mainly with this single work. The available records include only this one title, which is not enough to outline a fuller creative trajectory or to determine whether the author has written in other genres or fields. This introduction therefore states only the facts at hand and makes no speculative additions; as more material emerges, the understanding of Zhuang Yan may be further enriched.