Goku Black, usually referred to as Black, is the main antagonist of the "future" Trunks saga of Dragon Ball Super. His true identity is the original present Zamasu, a former North Kai and supreme Kai apprentice serving the supreme Kai of universe 10, Gowasu, from the unaltered main timeline, in which he stole the body of the original present Goku and sought to destroy all mortals alongside future Zamasu. He was given the name "Goku Black" By future Bulla when he initially referred to himself as son Goku.