Deemed unworthy by her own family, Ariel suffered a tragic fate in the Marquis household. However, a twist of destiny grants her a second chance at childhood. Determined to alter her grim future, she enters a strategic marriage with Lakarter, the reputedly eccentric duke's son. Unraveling the mystery of a set of keys to the grand duke's treasury, Ariel discovers newfound freedom and power at her fingertips.