In 2199, the earth suffered a disaster, was eroded by mysterious "void dust", and human society collapsed. Lin Youran and five partners with distinctive personalities struggled to survive among the shocking ruins. They have gone through monster siege, resource depletion, betrayal of their own kind and other tests, and gained new friendship and growth from the ruins. The truth is gradually revealed: the end of the world is a test of human self, and Lilian's life experience affects life and death. In the final battle, the team defeated the dust alien body with optimistic and humorous beliefs and awakened the last warmth of human nature. As the ruins are being rebuilt into a new order, they witness the dawn of hope for mankind with laughter and tears.
