Kengo Hattori

After already conquering hundreds of planets, the Great Star League Gozma sets its sights onto Earth. To defend the lands in such a great crisis, the military begins a special branch known as the Earth Defense Force, comprised of elite members from all areas of the military. Under the supervision of Commander Ibuki, the numerous gathered soldiers of the Earth Defense Force begin a harsh training.

Five junior high school students in the city enjoy stealing as a game to pass the time. One day, a mysterious masked man suddenly appears in front of them and attacks them.