The film tells the story of Xiaowu (played by Li Yan), a young man who was transformed from a page in the "Book of Heaven". He fell in love with Yan Ruyu (played by Zhang Nan), the concubine of Emperor Zhenzong of Song Dynasty. After being discovered, Xiaowu was beheaded. After reincarnation, he experienced a wonderful adventure to solve the mystery of his life experience for thousands of years, and then continued his marriage with Yan Ruyu in the previous life.