Kaia, a legendary warrior-queen betrayed by her consort, wakes up in the body of Melody—a modern-day 'pushover' heiress who died in a suspicious accident. Inheriting Melody’s identity and her marriage to the supposedly 'frail' billionaire heir Cayden, Kaia decides to stop being a victim. Using her ancient strategic brilliance and combat skills, she dismantles Melody’s rivals while discovering that her quiet husband is hiding a power that rivals her own imperial past.