Over a thousand years ago, the world changed.

  After a comet struck the earth, life known to man and creature was forced to change. A strange new energy crept into their veins, and a grand evolution overtook all life on earth.

  Creeping from the corners of the earth, rising from the depths of the sea, and diving from the heights of the sky, were evolved titans that overtook the human popution, spilling it into complete chaos.

  It was at that time when they appeared.

  7 humans, each of them with powers evolved beyond the realm of humanly limits defended the earth from the destructive threat. It was after that, humans discovered the power they named as 'the bloodline'. A power that could be passed from parent to offspring like genes, it grew more powerful with every generation. The power could also be given to others, but giving an ability gave no increase in power.

  For a 100 or so years after the great evolution, the world seemed to has stabilized, and humans had begun to learn how to live with all of these new changes. Nobody expected any change...

  That was until they had otherworldly visitors. Creatures that they had knew of only in fork-lore appeared, once again throwing the world into chaos. War commenced, and humanity was pushed back, until a new generation of heroes had to rise. In this case, it was only a single man who rose, defending the earth from the outsiders.

  After reaching a standstill, the rivals entered into a treaty. Number one: no one side would attack the others, and Number two: humans would allocate pieces of their nd on which the outsiders, who were refugees from their pnets, could live. Since over half of human popution had perished, such a condition was easily fulfilled.

  Just like that, the world changed.

  What had once been known to man as fantasy, had become as true as day.