In ancient times, a young man named Quinzou was murdered by his older brother, who was a title holder. The young man tells the story of his brother's murder, which occurred at the wedding of his sister-in-law, the first daughter of a rival clan. The wedding was arranged by a woman named Gu Ciqu, who managed to persuade the older members of the two families to seek peace. One year later, the young man's brother returned to his old clan, but he refused the marriage, saying that he did not want to marry a woman who was drunk. After the wedding, he continued to practice sword with his friend, yun Pizhi, and drank all night. On the wedding day, the shadow guard who was supposed to be by the table did not attend the wedding because he had received an order from his brother. The shadow guard was enraged when he saw that his brother was not the same person as he had been. He was about to kill his brother when he realized that the man was already dead. The story of the murder spread throughout the martial arts community, but the family failed to find the killer.