Zhang Fei was a famous hero in the Three Kingdoms period and Liu Bei's sworn brother. After Liu Bei became king in Hanzhong, he was named the right general and one of the five tiger generals.

Zhang Fei is an important leader of Shu Han, but he is a martial artist. He has no knowledge and a bad temper. How many times has he caused great trouble to the army? Becoming a general is already a great honor for a big butcher, and I am a little unconvinced by being named as a five-tiger general.

But on second thought, it's natural. First of all, Zhang Fei is the sworn brother of Liu Bei and Guan Yu, and the relationship is there. Moreover, the three brothers have risked their lives for many years and made great contributions.

Moreover, Liu Bei became the king of Hanzhong, Guan Yu was a brave hero, and he was well-deserved to be called the General of the Five Tigers. His two brothers are both kings and army commanders in China, so Liu Bei must give Zhang Fei a good name, even to save face.

What's more, Zhang Fei has his own set of rules for marching and fighting. Although he is a lout, he is absolutely loyal to Liu Bei and his work is redundant. Although most battles are won by brute force, there are few enemies, so it is reasonable to appoint Zhang Fei as the army of the Five Tigers, whether in public or in private.