Author: Tsutomu Nihei

Illustration & Cover: Tsutomu Nihei

The artificial celestial body Aposimz has a diameter of 120,000 km. Most of its volume is the core, which is covered by a superstructural shell. Fifty centuries ago, the people who lost the war against the core lost the right to legally inhabit Aposimz and were abandoned on the frozen surface. They face the uncontrollable Frame Disease and aggressive automatons that often appear in the Ruins Level. However, despite all this, people manage to survive.