I do not own Pokémon or any of its characters. I am not making any money off of this.
*Let it be known that the Author really, really believes that these People need a new name and will talk it over with the Artist at a later date. Thank you.
What are Poke-nin and Poke-ningen?
The answer is as simple as the question. Poke-nin are Pokémon who through varied methods (Practice, skill, type advantages, love, etc.) have achieved a stable Human form that only superficially resembles their true form. Take Moira for example, a young woman who's tightly curled pink hair oddly resembles the antennae of a Chancey. Or Lucas, a white hair male with a single shock of black hair.
In broad strokes, Poke-ningen are the half human children of Poke-nin. There have been cases of two Poke-nin producing children who already have a human form. These children are also classified as Poke-ningen.
Historically speaking, there have been instances where Legendries, the Gods and creators of our world, have taken on a Human-like form. Be it to teach, trick or harm, the myth, legends, folktales and written history of our time here supports their existence.
A compelling example is the story of how mankind discovered fire. All across the world, even in regions that had no contact with the outside world until recently, each story stays true to the same elements. In each tale, fire was not discover by accident, but given to mankind by a man (or woman in some regions) dressed in rainbow colored robes. Could this be a clue? Could it be Ho oh, the Rainbow hued Pokémon, Keeper of the Sacred Flame of Heaven? Of this I am certain. As such I go further in my search for the truth.
I hope my notes make it to you in one piece Professor and I hope that when I next see you we can speak at length about my findings.
Holonis the Scholar