Since prince D.O has always been searching for priceless treasures and hidden secrets the world can offer, he forgot his duty of loving his beloved princess, Ara.

Ara, knowing her beloved prince's heart for finding the rarest treasures of earth and travelling miles and stones apart from her to gather them, she sets him on a quest, a quest to find El Dorado.

El Dorado, the city of gold and the city of man's dreams, a man's ultimate gold. This  El Dorado only appears in one place for a period of time. When the next full moon appears, it will disappear and cease to exist in that land and only exist in another realm. No wonder, El Dorado is hard to find. 

Knowing this quest will set prince D.O on the run, knowing that he only has the period of a month (the moon cycle) to find this land called El Dorado, what will happen to the princess whom he leaves that period for?

"By the end of the full moon, if you do not return with a piece of Eldorado, it will cease to exist in the area ever again. The moment man touches its realm and brings a part of it to another area outside of itself, it will stay in that area forever. You have till then to figure out where El Dorado is"