Liu Bang's eldest son Liu Fei was the half-brother of Emperor Hui, and his mother was Cao. The semi-transparent existence in historical records, emotional experiences and life experiences are almost completely blank. In the first month of the sixth year of Emperor Gaodi's reign, Jiazi was granted the title of King of Qi, established the State of Qi, with its capital at Linzi, and commanded six groups and seventy-three cities. Let's take a look at Liu Fei's life during the magnificent era of the late Qin and early Han dynasties.