Yuan Wan'er sneaked into the Tang New New Oriental Academy in order to explore the heavenly book that contained peerless secrets, and unexpectedly met Sima Qingyang. In the misunderstandings and cooperation again and again, Yuan Wan'er's kindness and agility gradually impressed Sima, and the two secretly fell in love. With the continuous in-depth search, the two worked together to unlock the secret of the Book of Heaven and gained destined love.