When college student Sa-Na finds herself trapped in the body of Isana Castilla from the Titan Empire, facing a grim fate for alleged witchcraft, her encounter with Crown Prince Ludwig alters her destiny. Rising to power as Empress, she aids the Emperor in battling malevolent foes. As she navigates her newfound royalty and harbors a mysterious secret, Sa-Na must unravel the enigma of her origin and strive to return to her own world.