A thousand years ago, there was a great war between gods and demons. After the war ended its impact caused Reiji. A giant lightning that will devastate humanity. So the next generation has to adapt and survive this disaster. And this is the story of an orphan boy and girl who want to be stronger for your own dreams and personal revenge. In a world where Reiji can wipe out humanity's race, They both will grow and become stronger on different paths and will meet again as a friend, lover, or enemy.