Overman King Gainer - Exodus 2

The London IMA (International Monitoring Agency), the central government that strictly censors and controls the Domepolis throughout the world, has taken charge of stopping the Siberian Exodus and has deployed its elite St. Regan troops, led by Asuham Boone, to attack the City Units. Despite the perilous situation they are in, Gain and Gainer hide this fact in order for the residents of the City Units to forget their worries and enjoy the athletic festival. But sooner or later, they are going to have to face the pursuing troops and discover the truth behind Asuham's obsessive hatred of Gain.