Robyn Heffly's world revolved around music and her two dogs. She was satisfied on earning a few dollars by singing a few songs together with her band mates every night in a mini-resto in their city. She was viewed as the black sheep of her family for she always does what she wants in opposition with her parents. Unlike Rachaela, her twin sister, who was a total opposite of her and was also their favorite. Rachaela Heffley, being the perfect daughter of the family had big ambitions in life. One of them was to marry a royal blood to finally achieve her greatest goal of self-fulfillment and bring honor to their family. Such dream was given guarantee after she became known to King Leopold Chauncey in a reunion party. The King after seeing how wife material and intelligent Rachaela is immediately called for a wedding with his favorite grandson ㅡ Arthur Chauncey. But only a week before the royal wedding, Rachaela got into an accident and fell into a deep coma. The Heffly family, fearing to disappoint the Chauncey family of such inconvenience and crushing Rachaela's dream, put Robyn as a substitute bride in place of her twin.