In the ancient continent of Atlas, humans and dragons once formed a sacred alliance to jointly protect the peace and prosperity of this land. However, with the quiet rise of the "Dragon Slayer" cult, the ancient oath was stained by blood, the dragon clan suffered a near-annihilation blow, and the remaining dragon bloodline became silent. The once glorious kingdom is crumbling, evil undercurrents are surging deep in the continent, and the ancient evil god seems to be awakening from his slumber.
