Gu Xiaoyu accidentally transmigrated into a book, and her inner thoughts could actually be heard by the Gu family members. Relying on her foreknowledge of the plot, she assisted her family in exposing the fake socialite's schemes, teamed up with the iron-blooded commander Huo Chenyuan, repeatedly thwarted overseas hostile forces' conspiracies to steal the nation's core technology, and protected national heavyweights such as the "Huaxia Dragon Core". In the process of facing dangers together, she reaped a family affection filled with pampering from all members, and also achieved a mutual understanding and lifelong companionship with Huo Chenyuan, composing a warm chapter of passionate national defense.