The sky cracked and stars fell, the civilization of the old world turned into scorched earth; the earth's veins were cut off and miasma arose, and the order of the rivers and lakes was shattered like rubble. Among the ruins, there are rusty mechanical puppets roaring and the remaining martial arts sects. Sword energy cannot cut through the radiation fog, and light skills cannot cross the energy restricted area. Only in the gap between the debris of technology and the inheritance of martial arts, someone can move forward with a sword. He stepped on the abandoned aerostat wreckage, split open the tide of mutated ferocious beasts, searched for the scattered secret keys of the old world, and made friends with people in the world who had their own unique skills. Use ancient weapons to break down technological barriers, and use chivalrous heart to fight against the doomsday sinking. In the rivers and lakes covered with stardust, a dispute concerning the survival of mankind is quietly beginning with the cold light of the sword.