Xia Yingying has only one work recorded in the Chinese book database, and limited public information is available: her dates of birth and death, nationality, and personal background cannot be confirmed. Her known representative work is Mi Yang's Smile, which is classified under premium fiction and youth literature, suggesting that her writing falls roughly within the scope of coming-of-age and emotional narratives. Judging from the available clues, the title carries a gentle, everyday tone, hinting that her writing may lean toward portraying characters' inner lives and details of daily experience rather than grand narratives. Since only this one work can currently be attributed to her, it is not yet possible to outline her full creative trajectory or the evolution of her style, nor to determine whether she has long concentrated on youth literature. Readers who wish to learn about Xia Yingying may begin with Mi Yang's Smile and observe her approach to characterization and emotional expression. More information about the author remains to be supplemented by public sources.