Eliza, the duke’s daughter, is despised by the people as the “Jewel-Devouring Villainess” for her obsession with collecting gemstones. At her wedding ceremony with her unfaithful fiancé, Prince Marquis, she boldly declares the nation’s treasured crown tiara to be “worthless trash.” Outraged, the prince annuls their engagement and orders her exile from the kingdom. But just then, the crown prince of a neighboring empire steps forward, requesting to take Eliza back with him. The truth is, Eliza possesses a rare and extraordinary eye for gemstones—capable of seeing what others cannot. The so-called “worthless” national treasure hides a dangerous secret that could shake the kingdom to its core. With her unmatched powers of appraisal, the villainess who sees through all deceptions is about to rise!