Mao Juan'er, the only descendant of the Mao family who exorcises demons, and Ma Ling'er, who exorcises demons from the Ma family, are collectively known as Nan Mao and Bei Ma. One of them has a carefree personality, while the other is strong on the outside and soft on the inside. Their biggest common hobby is: making money! What they like most: money! In order to find the prophecy book left by their ancestors, they and a group of friends searched for treasures. In addition to deciphering the end of the world mentioned in the prophecy book, the ultimate goal was to make money! Money money money! It's the best thing in the world!