Cao Guojiu, originally named Jingxiu, was the son of Prime Minister Cao Bin.
Cao Guojiu had a younger brother named Cao Jingzhi, who abused his power and committed countless evil deeds. One year, Cao's brother set his sights on the wife of a scholar journeying to the capital to take the imperial exam. In a quarrel, he killed the scholar.
Later, the scholar's friend reported this matter to Bao Zheng. Upon learning of this, Cao Guojiu, out of a twisted sense of care for his brother, even instructed him to kill the scholar's wife, aiming to eliminate all evidence.
The scholar's wife was brought to Cao Mansion, and just as she was about to be thrown into the well—
A brilliant light illuminated the sky, and a swordsman descended from the heavens.
"Do you still not recognize your mistakes, Cao Jingxiu?"
Song Lin stared coldly at the figure in official robes not far away.
