The unexpected appearance of the Vortex, Pillar of Despair, unleashed dreadful creatures that brutally raided the world. Defenseless and vulnerable, mankind was soon on the verge of extinction. When all hope was lost, a miracle happened and the creatures suddenly vanished. Desperate to prevent the next invasion, the survivors created a group called the 'Corps' that journeys into the Vortex from whence the creatures emerged. You will lead the Corps to reveal the secrets behind the incidents. Will the human race succeed in changing the course of their destiny?