In Weilüe, the author approved Cao Wei's regime as the rightful ruler, took a clear stance, praised and beautified the northern regime in historical narratives, and thus to slander the rival. Besides the official records, there were plenty materials of the highborn governors of the state - especially the negative deeds and inner conflicts of Cao family. Yu Huan, as the private historian of Cao family, had constructed a historical interpretation system differing from Cao Wei's official perspective. Considering the terrifying political circumstance he was under, his stance is rather an issue worth discussing. Only Yu Huan depicted the history of Three Kingdoms in ＂curious and sensitive＂ attitudes. And thus his historical narratives were often regarded as ＂full of messy details＂ and ＂redundant＂ comparing to Chen Shou's Sanguo zhi. There are more narratives of details, plot developments, conversations and interactions, biographical descriptions to a certain person in the book, which then makes it even likely to include unofficial histories and tales. Moreover, it's the first time in the field of biographical history writing to emphasize the personalities of members of Cao family, regardless of pros and cons, which makes it different from the earlier contemporary history Weishu written by Wang Chen. Along with rhetorical performances of emotions, Weilüe gently figured persons away from flatness, and so brings out the correspondence of arts