Xu Weixiong is the second sister of the protagonist Xu Fengnian in "The Sword In the Snow", but she is not Xu Fengnian's biological sister, she is Xu Xiao's righteous daughter and the Deadpool armor that protects Xu Fengnian.
When Xu Weixiong first appeared, Xu Xiao and Xu Fengnian were afraid of her, and neither of them dared to come out alone to see Xu Weixiong, at that time everyone thought that Xu Weixiong was a woman with strong martial arts.
Zhao Kai has been pursuing and killing Xu Fengnian, but Zhao Kai has not personally done it himself, he relies on verbal kung fu to fool others every time, and relies on the red armor of the fu general to deal with Xu Fengnian, so that everyone feels that Zhao Kai's kung fu is not high.
Later, Zhao Kai followed Xu Fengnian to the Shangyin Xuegong, and in the Shangyin Xuegong, he fought with Xu Weixiong, only to find that Xu Weixiong could not beat Zhao Kai, which was also Zhao Kai's first shot.
In the finale of the first season, Xu Weixiong avenges his mother and goes to fight with Zhao Kai, a person who is not his opponent, and later relies on his younger brother Xu Longxiang to gain the upper hand. After that, Zhao Kai knew that he was powerless to return to heaven, so he slapped his finger and used the charm to kill jinjia.
Xu Weixiong's real strength is his wisdom and ability to command. Xu Weixiong commented on the achievements of the people under the heavens, and let them obey and go back, she also created her own Go Nineteen Dao, making her famous, and the real kung fu really could not beat Zhao Kai.