During zhu Yuanzhang's 31 years in power, in order to rectify the phenomenon of corruption in the ming dynasty's officialdom, he launched six large-scale anti-corruption campaigns, killing a total of about 150,000 corrupt officials. Among them, the more famous Guo Huan case, the empty seal case, the Hu Weiyong case and so on. Among these cases, there is a very special case, which is said to have been personally solved by Zhu Yuanzhang. This was in the 19th year of Hongwu, zhu Yuanzhang, in order to inspect the achievements of local officials and observe public opinion, secretly visited the private micro-service under the secret company of his own bodyguards.
Because Zhu Yuanzhang has experience as a beggar and knows how to deal with these inferior people, he will be mixed up when he comes and goes, but after he is mixed, Zhu Yuanzhang has changed from being happy to unhappy. In the conversations of these beggars, he learned about the corruption of the ministers of the DPRK, such as a royal historian named Liu Zhiren, who usually dragged on when judging cases, and how long he could drag on.
After Zhu Yuanzhang learned of this, he was naturally very angry. So he went back to the palace to thoroughly investigate the matter, and after investigation, he found that Liu Zhiren had been doing these things that hurt heaven and nature. Therefore, Zhu Yuanzhang directly gave Liu Zhiren a felony - transgressing the ancestral system. To transgress the ancestral system is to have crossed the previously established system, and this crime can be large or small, all depending on the mood of the officials, then if this crime is spoken out of Zhu Yuanzhang's mouth, it will definitely be a major crime.
Later, Zhu Yuanzhang simply stipulated that all officials who were considered guilty by the people could be directly arrested and sent to their superiors for conviction, and because of Zhu Yuanzhang's series of measures, the number of corrupt officials who died during the Hongwu years also reached a terrifying 150,000.