According to the query in the novel She's an Exception, Xi Shi and Li Hui are not formally matched. Formal matching refers to the role matching explicitly expressed or arranged by the official or the author, while Xi Shi and Li Hui are not explicitly expressed or arranged as a matching relationship. Although some fans may regard it as a couple, it is not official, nor is it the author's intention. Therefore, Xi Shi and Li Hui are not official competitions.