The Chinese empire in the 9th century. The Demon Kings are terrorising the country. Overcoming these monsters requires the courage of a hundred tigers, the strength of a thousand buffalo and the cunning of as many snakes. And all the luck in the world. Young prince Duan has nothing but his romantic illusions and a fat belly. Zhang-the-Perfect only has his monk's staff and a stack of incomprehensible proverbs. The little beggar, Pei Pei, only has her gift of the gab and large appetite. But above all, prince Duan, the old monk and the little beggar didn't know it was impossible to beat the Demon Kings. And they succeeded.