In 2075 AD, the "Neural Dome" system covers the world.
This revolutionary technology connects human consciousness to the metaverse. Language and text are replaced by direct brainwave connections, and the world is running at high speed in a torrent of data. However, when a virus called the "Silent Plague" swept across the world, all humans who relied on brain-computer interfaces instantly lost control of their bodies, and their consciousness was trapped in a virtual cage, leaving only their heads lingering in reality.
