Su Yu and Jiang Yi, a pair of close best friends, accidentally time-travel into a book, both falling into becoming the cannon fodder sisters-in-law of the wealthy Fu family. To rewrite their tragic endings, the two outwardly pretend to be estranged, while secretly teaming up to outwit their mother-in-law and various trials. Relying on her quirky and high-spirited persona, Su Yu wraps the paranoid and cold Fu Yanchen around her finger; Jiang Yi rips off her love-brain label, making a stunning counterattack and returning to the entertainment industry with all-round strength. When their best-friend bond and the truth about their marriages teeter on the verge of exposure, they protect each other and hand in hand rewrite their cannon fodder lives.