Mind if I post some cnc on your development so far?
It seems like a strong plot as in what's going to happen, in going back to have a go at the Kanto region's league, but one thing that bothers me is the shadow Pokemon. I mean what purpose do they serve? It seems as if you've just thrown them in there for filler or something. Is there an enemy team which want to cease control of these Shadow Pokemon, or use their power for their own needs? It just seems to me like you want to go back to the Kanto League because Professor Oak told you to.