In the vast universe, humanity's understanding of dimensions remains limited. Beyond the dimensions known to humans, there exist other advanced dimensional worlds. In the dimension of matter, the Dark Dimension faction seeks to invade more dimensional spaces to expand their territory, while the Light Dimension fights to protect other dimensions from them. On Earth, their final battlefield, the Light Dimension reduced both itself and the Dark Dimension to a two-dimensional plane. The dimensional spirits of both factions were left behind on Earth. Only a select few humans, who possess the power to unlock dimensional forces, can restore these dimensional spirits from a flat plane back to their three-dimensional forms. They are known as "Dimension Masters."