The prince of Ethernal blades

A dimension close to Earth known as Ethernal blades, a world where magic and elements are the powers a world full of happiness, joy and peace but the legend came true that when the royal family's 16th will have a son, then the a person from a corner of the Kingdome of Ethernal blades will attack the king and rule cruely over the people of Ethernal blades. But no one mentioned about the prince who would protect his people. For years the prince will be on Earth away form the cruelty, and one day he will go to end the cruelty.