The year is 3028. Earth is the center of a vast interplanetary cooperative called the Sphere, governed by the twin immortal Titan beings Archetype and Progenitor — genetic super beings engineered a century ago by Dr. Tobias Xenos. The Hyperion Sect, a government of human and alien leaders, administers the Sphere under the Titans, with worship of the Titans compulsory throughout. The Sphere's defense force is called the Angels; the elite among them serve as Arcangels. The Sphere has been at peace for over thirty years. What the game explores is whether that peace will hold and what it costs to maintain it.