Luo Guanzhong was a feudal scholar educated by orthodox Confucianism, and the education and ideological field dominated by Confucianism was formed in the period of Emperor Wu of Han Dynasty. Therefore, the orthodox Confucianism respected the Han Dynasty more than all previous dynasties. By the end of the Eastern Han Dynasty, the Han Dynasty had gone through hundreds of years, and the concept of taking Han family and Liu family as its origin had already been deeply rooted in people's hearts. Influenced by Confucianism, it is natural for Luo Guanzhong to respect Liu and restrain Cao.