Story takes place on a hidden island that's protected by a supernatural force. The only ones who know the whereabouts of this hidden island are the prestigious families, who are descendants of a king or queen. So far everything seems peaceful on earth since the defeat of the darkness a 1,000 years ago. Most prestigious families are still rebuilding the kingdoms of their ancestors that lived a 1,000 years ago. You see a 1,000 years ago the darkness destroyed everything which includes land, kingdoms, homes, animals, trees, food, and almost all of mankind. Only A 1,000 people had survived
, but they had been scattered all over the world because they were fleeing from the darkness. To find each other again had been difficult, but thanks to the royal families they were able to find each other. So the royal families put order and they them started rebuilding the kingdoms that had been destroyed. Now present time most prestigious families have sent their children to the hidden island for protection, because there have been frequent attacks from invaders. Some prestigious families have already been destroyed and so to at least have their children safe, the prestigious families sent their children to the hidden island. So if they were to die, at least their children would carry out their legacy.