In the near future of 2235, technology is highly developed but social conflicts have intensified. Neon City has become a cyberpunk-style metropolis.
The story takes place in the lower part of Neon City, which is full of illegal prosthetic clinics and underground churches, which is in sharp contrast to the holographic advertisements in the upper part of the city.
The development of science and technology has led to the popularization of brain-computer interfaces, but the accompanying "phantom limb plague" is spreading, and the ancient organization "The Church of the Abyss" secretly performs rituals to awaken the ancient gods.
