Civilization was annihilated in the "fog of eternal night". The scavenger awakened the strange power of reading memories in the ruins in the middle of the night, and became partners with the engineer Xian and the soldier Leighton. In order to pursue the whereabouts of their loved ones and the truth about the doomsday, they resolutely stepped into the unknown fog, but they did not know that they had become the first target of a world-destroying conspiracy... This is an epic story of guarding the remnants of civilization in the long night and fighting in desperate situations.