It takes place during the
Dali reign era (766-80) of
Emperor Daizong of Tang and follows the tale of a young man named Cui who enlists the aid of Mole, his negrito slave, to help free his beloved who was forced to join a court official's
harem. At midnight, Mole kills the guard dogs around the compound and carries Cui on his back while easily jumping to the tops of walls and bounding from roof to roof. With the lovers reunited, Mole leaps over ten tall walls with both of them on his back. Cui and his beloved are able to live happily together in peace because the official believes that she was kidnapped by
youxia warriors and does not want to make trouble for himself by pursuing them. However, two years later, one of the official's attendants sees the girl in the city and reports this. The official arrests Cui and, once he hears the entire story, sends men to capture the negrito slave. But Mole escapes with his dagger (apparently his only possession) and flies over the city walls in order to escape apprehension. He is seen over ten years later selling medicine in the city
Luoyang, not having aged a single day. ==Daoist influence==