When human beings just stepped into the interstellar era, they encountered the Osk civilization, and the first interstellar war followed. As the territory continued to fall, the fleet casualties increased, and finally human beings were forced back to the solar system. In the 58th year of the Federation, from the earth The time traveler Lin Fan graduated from the Interstellar Military Academy and joined the Federation Fleet. From this day on, the counterattack of mankind began. From the beginning of the Milky Way to the domination of the entire universe, the pace of mankind will never stop. This is a story of a traverser leading mankind to counterattack and fight for hegemony in the universe.