The remnants of the Terran Republic

After the war of colonial secession, the earth is left in ruin. Humanity has lost all record of the earth before the war and worship the technologically advanced people of pre-war earth. every April, thousands of people travel in religious pilgrimage to Sancta, a bio-synthetic environment thought to be Terra decorum (land of the gods). meanwhile, the Xeno-26 pandemic, a parasitic disease, has been rappidly spreading from the Xenus province, and Quarantine has been placed over the entire region, to block spread to the capital city of Aurum.