Wei Yi (Hu Ge) is an ordinary white-collar youth. His boring life and heavy pressure make him yearn for a free and exciting life. In an accident, Wei Yi was involved in the story of "The Deer and the Cauldron", traveled back to the Qing Dynasty, and became the romantic and intelligent Wei Xiaobao. At that time, the secrets hidden in the "Forty-two Chapters Sutra" made the court turbulent and related to the survival of the Qing Dynasty. At this juncture, the greedy Aobai (Lin Gengxin) came back to life and tried to usurp power. The Queen of Rakshasa, Sophia (Liu Shishi), reached out to Emperor Kangxi (Wu Qilong). With the help of a quirky Wei Xiaobao, can Aobai be brought to justice again? In the process of getting along day and night, Wei Xiaobao gradually fell in love with the intelligent and beautiful Sophia. Can his love blossom?