APOSIMZ boasts an enormous planetary body, artificially constructed and measuring an impressive 200,000 KM in diameter. While the core makes up the majority of its mass, a protective superstructure envelops it. Five hundred years back, those vanquished in a battle for the core were exiled to the frigid landscape of APOSIMZ, where they were denied their rightful home. These individuals struggle against harsh living conditions, including the constant threat of Frame disease and frequent attacks from aggressive robots in the ruins layer. Despite these challenges, humans persevere and discover ways to survive.