Shu Man was an outstanding magician in the 21st century, but by a twist of fate, she crossed over into a book and became Shen Yaoyao, the daughter of a minister in the Kingdom of Jing. She accidentally witnessed Xiao Yu kill the crown prince and narrowly escaped by pretending to be blind. By chance, she marries Xiao Yu and becomes the princess, beginning a life full of danger. Living in a feudal monarchy, she uses her wisdom to turn peril into safety, while also influencing the male lead and changing his fate of destroying the world...