How can these wondrous creatures function? What niche do they full, what role do they play out?

This is the story of a US Special Operations soldier, Dakota Cartson, who used to be one of America's agents classified as an assassin, given his specialty. This is the tale of how he becomes Arceus's Executioner. There is pokephilia hinted or bluntly stated as its hidden in the games and everything else pokemon related usually has something perverse in it, so expect humanxpokemon