Royals want to do what their parents did and rebels want to write their own destiny. Example: 林檎, アップル White is a royal so she wants to be the 次 snow white. Raven クイーン is a rebel so she does NOT want to be the 次 evil クイーン and she wants to 'write her own destiny'
The Royals are mainly the blood children of kings and queens. They also embrace their destiny and look フォワード, 前進, 楽しみにして to following it, Happily Ever After または not. The Rebels are usually commoners' children and want to rewrite their destiny.