When a Taoist and spiritual spy from the Imperial City is ordered to follow Tang Monk and his apprentice westward invisibly, he must secretly correct the deviation of cause and effect in the ridiculous Eighty-One Dilemma, jokingly deconstructing the absurd truth of the game between gods and Buddhas without revealing his identity, and finally obtains the supreme glory of Taoism with the ID card of "the protector behind the scenes".
