Skull Incorporated is an interdimensional organization founded by the exodon species. After discovering a scientific method to make gates between different dimensions, they have spread out to a number of worlds either overtaking them by force, or by buying out the original population.
Skull Inc. have only continued their technological development, making the exodons, and the species they have come into contact with, some of the most advanced in the entire universe. However, their advancements are made with little concern for the worlds they operate on. This has led Heaven to see them as a menace and a serious threat to universal order.