Pei Xuan, a native of Jingzhao Prefecture, is a kongmu in his hometown. He is known for being uncompromising in upholding justice, incorruptible before bribes and fearless of coercions. These attributes earn him the nickname "Iron Faced Magistrate's Scribe". Besides being well-versed in the law of the Song empire, Pei Xuan, who has a chubby face, is an expert in swordsmanship and likes traditional arts.
Pei Xuan's no-nonsense approach in handling litigation cases at last gets him into trouble with higher officials. They falsely accuse him of insubordination and get him sentenced to exile in Shamen Island. Along the way, Pei Xuan and his escorts pass by Yinma River, where they are intercepted by a bandit gang led by Deng Fei and Meng Kang. Freed by the two, Pei Xuan impresses them with his aplomb and upright personality that they make him their leader. Dai Zong of Liangshan incidentally comes to know Yang Lin when he is in Jizhou by order of Song Jiang to locate Gongsun Sheng to fetch him back to the stronghold. Gongsun has been away too long to visit his mother. Together, Dai and Yang pass by Yinma River, where they are blocked by Deng Fei, Meng Kang and their men. It turns out that Yang and Deng are acquaintances. They are introduced to Pei Xuan, who accepts Dai's invitation to merge his band into that of Liangshan..
Campaigns
Pei Xuan is put in charge of deciding on rewards and punishments after the 108 Stars of Destiny came together in what is called the Grand Assembly. He participates in the campaigns against the Liao invaders and rebel forces in Song territory following amnesty from Emperor Huizong for Liangshan, In the attack on Jingnan in the campaign against Wang Qing, Pei Xuan, Xiao Rang and Jin Dajian are captured by the enemy. The three refused to surrender and divulge any information under torture. They are freed when Xiao Jiasui and others revolt against Wang, causing Jingnan to fall. Pei Xuan is one of the few Liangshan heroes who survive all the campaigns. Although given an official position, he declines it and returns to Yinma River with Yang Lin to resume the life of a bandit.
