Lian Yi accidentally falls into a book world and binds with a system to take on a dual mission, allowing her to return to reality once completed. By a twist of fate, she rescues Yan Yuchi, a young man with the ability to foresee the future. The two journey together through numerous perilous dangers, gradually developing romantic feelings while spending their days and nights side by side. However, the system continuously issues directives, forcing Yan Yuchi down a dark and misguided path. In Lian Yi's heart, she is unwilling to watch the young man degenerate into a villain despised by the world, and she wholeheartedly hopes he will live as an upright and honorable gentleman respected by all. On one side are the shackles of the mission to return to reality, and on the other is the beloved whom she wishes to protect with all her might. To guard the young man's original purity, Lian Yi is willing to stake herself and defy the predetermined storyline.