Pang Ruiyin is a Chinese author about whom little public information is available. The only confirmed work is the novel Butian Lie (Mending the Crack in Heaven). In the library's classification, the book is placed under social fiction, suggesting that its subject matter leans toward observing real life and social relations rather than fantasy or purely entertainment-driven storytelling. On the basis of the available information, Pang Ruiyin's nationality, dates of birth and death, education, and writing career cannot be confirmed, nor are there reliable records of awards, official positions, or sales figures, so it would be inappropriate to speculate extensively about the author's life. The title Butian Lie carries connotations of repairing what is flawed and taking on heavy responsibilities, echoing the kind of realistic concern often found in social fiction. Readers who wish to understand the author's style and outlook will need to return to the work itself for a close reading. Overall, Pang Ruiyin's creative profile can currently be glimpsed only through this single work, and more information awaits further public documentation.