Righteously describe a fearless, full of sense of justice, strong and unyielding person for justice. Righteousness, an idiom in China, means being solemn because of justice. From Yan Wenzhong's new temple in Song Cao.
The story of Guan Yu
Before Guan Yu killed Yan Liang, Cao Cao worshipped Guan Yu very much. In order to know whether Guan Yu intends to stay long, he asked Zhang Liao to ask Guan Yu about his personal feelings. Guan Yu sighed and said to Zhang Liao. I know Zuo Zongtang's love for me, but I was sworn by General Liu Bei's great kindness not to betray him to the death. In the end, I won't stay, and I will leave for Tsao Gong.
Zhang Liao worried that if he reported truthfully, it might lead to Cao Cao killing Guan Yu. So, Zhang Liao sighed for a long time, and finally understood that Cao Cao is your father, and he is a courtier. You can't give up your duties because of your brotherly relationship with Guan Yu. Finally, Zhang Liao truthfully reported Guan Yu's thoughts to Cao Cao.
Cao Cao therefore praised Guan Yu for not forgetting his roots and being a righteous man on earth. Cao Cao asked Zhang Liao to guess when Guan Yu would leave. Zhang Liao knew that Guan Yu was a kind person, so he assured Guan Yu that he would repay his kindness. Knowing that Guan Yu was leaving, Cao Cao rewarded him and wanted to keep him.