Year 2135. Following World War Three, which was a non-nuclear war that killed half the world's population, the city-nation of Olympus stands as a beacon of hope in a world of chaos and conflict. The utopian metropolis is governed by Gaia, a vast artificial intelligence, and administered by genetically engineered humanoids known as bioroid, whose designer DNA suppresses strong emotions. With bioroids being half of its population, peace and order are easily maintained.
