In the last days when "grey fog" swallows civilization, the earth turns into a deadly wasteland. Lin Ke, an elite warrior from the former Ark City who was abandoned by his former glory, struggled to survive in exile. His only reliance is the "Eye of the Abyss", a mysterious prosthetic body implanted in his eyes that can understand the nature of all things. In order to wash away his grievances and return to the Ark City made of steel, he must carve his own way to survive between the distorted monsters and the unpredictable human heart. However, the closer he gets to the truth, the more he discovers that the collapse of this world is far darker and more desperate than he imagined. What he is looking for may not just be the way home, but the last secret of mankind.
