He was born with a fair and handsome face and a long beard. Recruited by Chao Gai right from the beginning of the Water Margin, Wu can probably best be compared as an equivalent to great military strategists like Zhuge Liang. Ever crafty and full of schemes, both Chao and Song Jiang were to depend on his expert military strategies to fight Liangshan's cause, although at times Wu deep down wanted to dissuade Song from serving the imperial government.
