Humanity knows very little about dimensions, and higher-dimensional worlds exist beyond the ones people understand. Within the material dimension, a dark faction works to grab ever more dimensional space and widen its territory, while the light dimension defends the other dimensions and fights back. Earth becomes the site of their final battle, where the light dimension flattens both itself and its dark rival into a two-dimensional plane. The dimensional spirits of both sides stay behind on Earth in that flattened state. Only a handful of humans hold the power to unseal dimensions and turn these spirits back into three-dimensional beings, and they are called Dimensional Generals. The action fantasy runs for 26 ONA episodes.