Start Traveling Through Time and Act as an Agent for the Civilization of the Solar System to Open up Wasteland

Chen Kai was taken by aliens to more than 4 billion years ago to witness the formation of the solar system and help the original solar system civilization resist the alien invasion. Plot: The protagonist leads the earliest technological civilization in the solar system (technology and civilization are more powerful than the current earth) from the outermost solar system planets to resisting an interstellar war on the earth.