At twenty years old, a young noblewoman from an impoverished border territory has never been given the chance to make her social debut. When her aunt from the empire’s most powerful ducal family suddenly offers to introduce her to high society, she accepts despite her suspicions. However, on the day of her debut, she is forced to pay an unexpected price and becomes entangled in a struggle for the imperial throne. To seek revenge, the timid but intelligent and level-headed young woman proposes an alliance with an illegitimate imperial prince who shares her unfortunate circumstances.