Sang Ning was born the eldest daughter of a distinguished family and raised from childhood to run its household. But when she opened her eyes, she found herself in an unfamiliar era—as the real daughter of a wealthy family who had been left behind in the countryside. At least she was still the eldest daughter. Her fake younger sister claimed to be highborn, a graduate of a prestigious school, and exceptionally talented. How could she make such claims when she knew nothing of music, chess, calligraphy, or painting? Her family said they felt guilty, but they clearly favored her younger sister. No matter: navigating family power struggles was a lesson Sang Ning had mastered since childhood. They said she had no manners? Less than a month after she came home, the entire Nan family was stunned to discover that their countryside-raised eldest daughter was even more old-fashioned than the family patriarch!