Lü Fang, a native of Tanzhou, usually wears a suit of red armour and a silk belt over a flowery robe as well as a knot-like headdress topped with a long feather. He rides a red horse and fights with a ji, exactly like Lü Bu of the Three Kingdoms era whose horse is named Red Hare for its colour and whose weapon called "Sky Piercer" was a ji. Due to his many similarities with Lü Bu, Lü Fang is nicknamed "Little Marquis of Wen", the Marquis of Wen being Lü Bu's highest official title. A trader in medicine, Lü Fang suffers losses while doing business in Shandong and could not afford the journey home. He becomes a bandit chief at one of the two facing hills of Mount Duiying or Mount Mirror Image. He builds up a reputation of martial prowess in the region after defeating many who come to duel with him. When Guo Sheng, who also fights with a ji, hears of Lü Fang, he comes to Mount Duiying to demand a fight to determine who is more worthy of the weapon. Neither can beat the other after jousting for days.
Joining Liangshan
, Hua Rong and the outlaws of Mount Qingfeng pass by Mount Duiying as they head to join Liangshan Marsh after causing rows at Qingzhou including routing a government army. They come upon the duel between Guo Sheng and Lü Fang. It happens that the tassels of the two ji get tangled together. The two fighters struggle but could not free their weapons. Seeing that, Hua Rong fires an arrow that hits the tangled point and separates the weapons. Everyone present cheers. Guo Sheng and Lü Fang stop their fight and come to greet Hua and his group. Upon learning that the group is going to Liangshan, both want in and are accepted.
Campaigns and death
After the 108 Stars of Destiny came together in what is called the Grand Assembly, Lü Fang, together with Guo Sheng, is appointed as the guardian of the central camp, which means he would be a personal bodyguard of Song Jiang. Lü Fang participates in the campaigns against the Liao invaders and rebel forces in Song territory following amnesty by Emperor Huizong for Liangshan. In the battle of Black Dragon Ridge in the campaign against Fang La, Lü Fang encounters an enemy officer Bai Qin, one of Fang's better warriors. After an inconclusive fight, they discard their weapons and grapple with each other on horseback. Both fall off the cliff to their deaths.
