Wu Song, also known as Second Brother Wu, is a legendary hero recounted since the 13th century; and one of the well-known fictional characters in the Water Margin, one of the Four Great Classic Novels in Chinese literature.

Zhou Tong was the archery teacher and second military arts tutor of famous Song dynasty general Yue Fei. Originally a local hero from Henan, he was hired to continue Yue Fei's military training in archery after the boy had rapidly mastered spearplay under his first teacher. In addition to the future general, Zhou accepted other children as archery pupils. During his tutelage, Zhou taught the children all of his skills and even rewarded Yue with his two favorite bows because he was his best pupil. After Zhou's death, Yue would regularly visit his tomb twice a month and perform unorthodox sacrifices that far surpassed that done for even beloved tutors. Yue later taught what he had learned from Zhou to his soldiers and they were successful in battle.