The fifth year of the Sea Invasion and the first year of Xuan plague. In the fifth summer of out-of-control temperatures, the glaciers melted away, and ancient viruses that had been trapped under the ice for tens of thousands of years woke up with the melting water, using animals as hosts to frantically rewrite their genes. Lu Xingzhou was twenty-six years old, retired from the Special Forces, and was studying for graduate school at Kunwu University, where his research focus was on ancient permafrost viruses. In the same city, his fiancée Su Wan died while working in the laboratory department, less than a year before their scheduled wedding date. The mysterious epidemic cannot be eradicated, and various countries have launched young vaccine programs to send people to the epidemic. The Ark never made it to port—slave ships intercepted it at the Switchback Channel. Three years in the mining area, a riot, and a Yuanci furnace turned him from a slave to the master of the star field. Then on the star map, he saw the coordinates of the earth. Next to the coordinates, someone wrote two words in red pen: resources.