What is the embodiment of legal Confucianism in Wei, Jin, Southern and Northern Dynasties?

Wei, Jin, Southern and Northern Dynasties is an important period of change in China's feudal legal system, and it is also an active stage of legalization of Confucianism. During this period, various social contradictions intensified, ethnic struggles were fierce, political power changed constantly, and society was in turmoil. In order to survive and develop in the turmoil, the ruling groups of various dynasties paid more attention to summing up the gains and losses of previous dynasties, including attaching importance to the role of law in maintaining feudal rule, so legislative activities were frequent and legal thoughts were active. Feudal rulers accumulated hundreds of years of legislative and judicial practice, and quoted classics to break the prison interpretation experience, which made the jurisprudence research at that time quite developed. Metaphysics and Buddhism based on Laozi and Zhuangzi's thought flourished for a time, which once shook the dominant position of Confucianism. Confucian orthodox legal thought gradually recovered its traditional influence under the complicated social background at that time. Li was introduced into the law, and the process of Confucian law began. From several important codes of this period, such as Wei Law, Jin Law, Northern Wei Law and Northern Qi Law, we can see that many contents of Confucianism were established as universal principles of feudal codes, which directly influenced the whole feudal legal system in China. At the end of the Eastern Han Dynasty, especially after the Yellow turban insurrectionary uprising, Confucian theology centered on predicting superstition declared bankruptcy. The rule of Confucian ethics advocated by the ruling class in the Eastern Han Dynasty has lost its effectiveness in maintaining people's hearts. With the support of Cao Wei regime, some feudal scholars took a fancy to the thoughts and theories of Xue Ming and Fa in the pre-Qin philosophers' "exclusive respect for Confucianism".