Modern office worker Su Wan is struck by lightning and transmigrates into a Republican-era novel, becoming someone who has transmigrated into a book. The amber in her hand lets her glimpse the memories of Shen Zhiyi, the beloved who died young. She discovers that the love between the ruthless warlord Lu Yi and Shen Zhiyi has been rewritten, and that she is the key to correcting history. Following clues across two timelines, she must uncover the fog of espionage and protect the truth that has been buried, while facing Lu Yi's complicated feelings that reach across time. In the end, amid the folds of two different eras, she pieces together a happy ending long hidden by the years.
