The Dimension Variable Accelerator System was a machine designed to create a special space allowing for the matter within it to shift into special forms. SEBEC's head, Takahisa Kandori, tries to use the reality-altering machine in a bid for godhood. For unknown reasons, the machine linked itself to Maki Sonomura's mind and made real her imaginary version of Mikage-cho. The machine was able to instantly seal half the city in an impenetrable bubble and summoned hundreds of demons doing the bidding of Takahisa and Maki's malevolent Id, Aki. After gaining full control of this "other" Mikage-cho and acquiring godhood, Kandori creates his castle Deva Yuga in the real world, where the DEVA system is relocated. After Kandori's death and the "Ideal Maki"'s fall into despair, the DEVA System's core