Having spent her formative years exploring the world on an extensive grand tour, Princess Y/N returns to England as a striking "old soul"—possessing a serene, sun-kissed beauty, a brilliant mind, and absolutely zero desire to find a husband. At twenty years old, her only mission for the upcoming social season is a protective one: to guide her eighteen-year-old brother, Prince William, through the treacherous waters of the marriage mart and help him find a genuine match. Safely tucked under the wing of her formidable aunt, Queen Charlotte, Y/N is convinced she is entirely immune to the madness of the ton.