From Tiger-Slaying Hero to Emperor of Great Chu

A sanda coach named Wu Song transmigrates into the world of Water Margin and becomes Wu Song. He marries Pan Jinlian and kills Ximen Qing. Later, he joins Liangshan. After the bandits are granted amnesty, he leads campaigns against Fang La, trains elite troops, and invents cannons and firearms. When the Jin army besieges Kaifeng, he rescues Li Shishi and the imperial household. He eventually ascends the throne, launches a northern campaign to wipe out the Jin state, and rescues the two emperors.