In the year 1000 cosmic calendar of the Kario Yuga era, the planet R, attended by two satellites, is an Earth which enjoys an abundance of majestic nature and a shining blue ocean.

It's existence is maintained by four Crystals which control the four basic elements of the universe: Earth, Water, Fire and Wind.

Once upon a time, when this planet was menaced by a dark entity and faced its biggest crisis the most courageous ones desperately fought to protect the crystals in a battle since long forgotten, but...