Introduction: This world is a predatory one. It swallows endless worlds and pits them against one another in a checkerboard of kingdoms. The weak are eaten, while the strong vie for resources and land.A grand system overlays this multifarious world, in which killing grants experience, and experience grants leveling up and greater strength.The core of any great city are dungeons, living entities which spawn randomly in the world. A dungeon core is one of the most valuable items in the world, and to capture one is a golden ticket to wealth and fame.Kingdoms rule the land, but people become heroes. Those who exhaust their blood to overcome their limits, those who crossed over from another world, those who fate shines upon, even those who died and regressed in time to their younger selves.One particular dungeon core was born from the darkness, a flawed entity which was more than it seemed....