Wan Fei (Joey Yung) is a promising Chinese Opera singer who is secretly in love with Ho Fung (Nicholas Tse). She plans to sing for him from the stage, but, in a tragic accident, dies mid-song. Years later, Wan Fei's ghost returns, and finds that part of her spirit has been reincarnated in the form of Chor-bat (Eason Chan). Wan Fei still longs to sing her song for her lover, and, after much humorous confusion, her dream is fulfilled.
Lost in the woods, the Emperor Qi stumbles across local chief Wu Yen, his predestined bride, only to accidentally free a promiscuous fox fairy who promptly falls in love with both of them, changing between man and woman to clumsily woo each, setting the scene for a constantly shifting triangle with the emperor torn between both the fox fairy and Wu Yen and the fox fairy after whichever one will agree to marry her first.