Poor young cobbler Wu Di lives with his mother and is crazy about martial-arts picture books. One day he repairs the shoe of wandering swordswoman Yuelou and later helps save her in a fight with wanted criminal Tian Baguang, even though he has no martial-arts training. She tells him she owes him a life and can be found on Qin Mountain if he ever needs her. Yuelou is actually a princess who was due to marry the emperor but ran away after setting fire to her palace quarters. In love, Wu Di sets ou...