Steven Universe

Steven Universe is an animated American TV show about a young teenage half-human half-Gem hybrid named Steven Universe and his adventures with his three overseers Garnet, Amethyst, and Pearl, the three remaining members of the army known as the Crystal Gems. On his journeys, Steven learns about his Gem heritage and abilities through not only his guardians, but through accidental discoveries and even his enemies as well. He and the Crystal Gems live in Beach City, a small beach coast residency that's hardly a city inhabited by humans who don't find magical rock people strange all that much.

Gems in Seven Universe are magical gemstones that came from outer space. Their bodies are illusions that allow the actual gem (the gemstone on the body) to move and fight. Gems don't need food or water like how humans do, although some do eat on occasion. When a Gem's body is badly damaged, it will release its physical form to retreat to its gem so then it can heal and return in better shape than before. If a Gem returns from healing too soon, however, it may have its body deformed or abilities become hardly usable, as seen in "Reformed". If a Gem is struck hard enough by an incoming attack, it will be shattered, the Gem equivalent of being killed. Shattered Gems cannot heal and are forever lost.