With the development of the human race civilization, the mankind had conquered territory throughout the Milky Way and established the powerful Galactic Republic.

During the process of a super-remote material transfer experiment to the X-Galaxy, humans accidentally destroyed a head fleet of an unknown alien race; and thus led to a prolonged space war between the Galactic Republic and the Alien Race.

In the early years of the war, the Galactic Republic was consistently lost to the intelligent Alien. Losing ground, humans gradually retreated to the Andromeda Galaxy, the edge of the Milky Way, where they put up the last-ditch resistance. With huge casualties, The Galactic Republic was severely lacking strength and close to the verge of destruction. At the crucial moment, the human scientists finally succeeded in the experiment of super-remote material transfer technology - quantum transfer and developed the new generation of remote-control unmanned warship - Space Astro Blaster.

With large number of unmanned warships being immediately deployed in the battlefield via quantum transfer, the death toll has been effectively narrowed down. More and more young generations joined in the force to fight with alien warships by remote-control unmanned warships on their home front. They created miracle and legend. Since then, the prolonged battle between human and alien stepped into an overturn…