I. The Vault

In the distant future, the science of stimulation manipulation is no longer in its infancy; in short, extremely lifelike, realistic simulations are now possible. However, the simulations created proved so immersive that most people chose to spend their entire lives in them, eliminating the need for a physical body. With only a brain anchoring their mind to this world, they are forever trapped in the simulations they selected.
Some, however, opted against this radical new technology. One such man travels underground to visit a gargantuan vault where the disembodied brains are stored.