Sang Ning was originally the legitimate eldest daughter of an ancient aristocratic family. After traveling through time to the modern era, her family looks down on her for her rural upbringing and lack of manners. Little do they know that, having been born into an eminent noble family, mastering aristocratic etiquette is precisely her greatest talent. In less than a month, everyone in the Nan family is horrified to discover that this country girl knows exactly how to sit and stand properly, demonstrating even greater expertise than a professional etiquette instructor. Her countless old-fashioned rules and formalities are enough to make anyone's scalp tingle.