Xiancai is an author in the field of Chinese science fiction. Publicly available information about this author is limited: their real name, nationality, and dates of birth and death have not been clearly recorded. As far as the library's holdings are concerned, Xiancai has only one work to their name, the science fiction novel Let the World Go. Judging from the category this work belongs to, their writing leans toward science fiction, and may involve imaginative treatment of grand themes such as the fate of the world and the human condition; the title itself carries a certain tension with a reflective quality. Because so little information about the author has been made public, it is difficult to judge the full scope of their writing style or to trace their creative development and influences. What can be confirmed is that Xiancai entered the view of science fiction readers with Let the World Go and belongs to the category of authors who have produced only a small number of works but have chosen science fiction as their direction of expression. For readers who wish to learn about this author, the most reliable approach at present remains experiencing their narrative interests and concerns through this work itself; more biographical and creative information awaits further public disclosure.