Steven Quartz Universe
is the eponymous main protagonist of the show Steven Universe.

He is the son of Greg Universe and Rose Quartz, and the only human male member of the Crystal Gems. A half-human, half-Gem as a result of his parentage, Steven is an extraordinary unique being with innate powers beyond that of both normal humans and Gems. Guided and aided by the Crystal Gems, Steven's destiny is to protect humanity as his mother did before him.