The first is Sima Yi. Sima yi was forced out of the mountain by Cao Cao and has been in charge of secretarial work in the prime minister's office. After Cao Pi succeeded in seizing the official position, Sima Yi was promoted to be a prince, assisting Cao Pi. Legend has it that Sima Yi "looked at the eagle to protect the wolf", and Cao Cao always wanted to get rid of him. However, Cao Pi not only trusted Sima Yi very much, but also had a very good personal relationship and always defended Sima Yi on various occasions.
The second is Chen Qun. Chen Qun is a noble family, an orthodox Confucian disciple, and I am also a gentleman. He is a rare talent to manage the world. He has been in charge of personnel and political system, and his contribution is particularly outstanding. Xelloss Cao Zhi and others seized the official position, and Chen Qun helped Xelloss a lot from the perspective of orthodox "standing up", although it was sincere. After xelloss acceded to the throne, Chen Qun was still in charge of personnel work. Chen Qun presided over the implementation of the "Nine Grades System" and abolished the political program of "meritocracy" in Cao Cao's era.
The third is the quality of Wu. Wu Zhi has made great contributions to Cao Pi, but he has been suppressed and his official position is very low. Cao Pi said to Wu Zhi, "In those days, you swam in Nanpi with Cao Xiu and Cao Zhen. Now, some of them worship the general, and only you are still in power. You and I share weal and woe, how can I not be ashamed? "
The fourth is Zhu Shuo. Zhu Shuo is not famous, but he is very important. He was the leader of China in the era of Xelloss and was in charge of the imperial army. His trust can be imagined. In the era of Cao Cao, Zhu Shuo spent more time guarding outside and had a very good relationship with Cao Pi. Because of his relationship, Cao Pi has many supporters in the army.
After Cao Pi acceded to the throne, Sima Yi was appointed as Hou Ting of Hejin, and became the prime minister's long history, responsible for overall work; Chen Qun was named Chang Hou and transferred to Shangshu Province, still responsible for personnel work; Take Wu Zhi as the northern corps commander, seal the rank of Hou, and make him live in seclusion, merge the army and rule the capital; Take Zhu Shuo as the leader. These four friends, one in charge of overall work, one in charge of personnel, one in charge of the imperial army and one in charge of the local army in the core area of the imperial court.