Premise
Homo habilis.
Homo ergaster.
Homo erectus.
Homo antecessor.
Homo heidelbergensis.
Homo sapiens.
Evolution doesn't stop here.
Homo superior, the evolutionary progeny of the human, Homo sapiens. Known more widely as the mutant, Homo superior differs from the human in one way only: the presence of a gene named X by scientists and research fellows. However, while the difference in genetic make up may seem insignificant, the X-gene is anything but. Individuals who possess the X-gene naturally develop superhuman powers and abilities. They are born with these powers, although typically they do not manifest until early adulthood, with the youngest recorded case being 17.
The X-gene itself is something of a mystery. Like other genetic coding, it is often prominent through family lines. If two mutants have a child, the child will be a mutant also; if a mutant and a human have a child, there is a 50% chance of the child possessing the X-gene. However, it is often the case that the gene appears in a child whose family has no known history of mutation. The reason why is still unknown. Additionally, the X-gene triggers different mutations in each individual (although some may share the same mutation as another). It is thought that this might be related to other parts of the genetic code, but as siblings have shown to have entirely different powersets, this is debatable. The mutations themselves differ widely; some mutants have little power but extreme physical mutations, whereas others are almost like gods in their abilities.
The first known mutant was a redhaired, green-eyed girl whose telepathic and telekinetic powers were so powerful that she became something like a goddess. Known to the Chinese as Xin Qian, this girl is revered by many mutants long after her death in 1602. At this time, mutants were few and far between, but for some reason, in recent years, mutant births are becoming more and more common. With the general Homo sapiens populace becoming increasingly more scared and threatened, Homo superior are prejudiced against and even hated by some, with life becoming unliveable for mutants in certain areas. As such, in the wake of World War II, mutant leaders banded together to create a sanctuary for mutants. Known as Utopia, it is a man-made island situated in the ocean that stretches between Japan and North Korea. Mutants are granted lifelong citizenship and are welcome whenever they have need or want. While many mutants still choose to live in the "outside world", Utopia is always open to them. (Some mutants with particularly bad physical deformities often choose never to leave.)
In the centre of the island is a castle surrounded by a forest. This castle, the Xin Qian Institute for Higher Learning, named after none other than the first mutant herself, is where newly-manifested mutants go in order to learn about their powers, how to deal with them and utilise them in their fields of interest, and furthermore, to be in a safe environment while learning about them.
This is the story of that school.