During the period of the Republic of China, there was a hidden treasure map that was divided into 18 puzzles and hidden everywhere. It aroused the covetousness of antique robbers. In the Qi Family Mansion who knew some clues about the treasure map, Sheng'er, who appeared to be a maidservant incognito, was hidden. Lanxuan Jiumei, a master Kung Fu member of the Lan family's team, worked as an undercover agent in the house to investigate the ins and outs of the treasure map. She and Master Jiang Cheng, the hero who made an unannounced visit to the Qi family pretending to be an old man, met for the first time but misunderstood each other, and became Huanxi Enemies. After burying their suspicions, they developed love. They dealt with the robbers to prevent the treasures of the motherland from flowing into the hands of foreign thieves.