4U-Corp was created when the Hereti-Corp of the Dimension of Rain combined with several other companies. This was a direct result of the R&D Wars. Before the wars started Hereti-Corp was already very powerful, and had close ties to the military after selling them Riff's stolen REA-1 (aka Mark-19) designs. After the wars Hereti-Corp, which had access to more advanced materials and weapons due to its military contracts and probably fared better, absorbed the weakened factions. Dr. Schlock publicly led Hereti-Corp and later 4U-Corp, and built 4U City. After it was finished, and apparently for no reason, the newly christened His Masterness used a giant weaponized DFA to flux every other being out of the dimension. (except for those inside 4U City) It is unknown what became of 4U-Corp after the