Lin Xinyu has known since childhood that she is different from other people. A genius with memories of three lifetimes, she stands out wherever she goes and can thrive in any era. After an accident brings her to a whole new world, she decides to make the best of it and becomes the youngest granddaughter in General Lin's household. This is an era absent from the history books, and Lin Xinyu's country, Beili, is the most powerful nation of all. As the chosen one, she is destined to shine wherever she goes. With medicine in one hand and poison in the other, she turns the world upside down. Joined by the ruler of the era, she takes the world into her hands.