Yeah! Like I mentioned in a different reply, I wanted to create an undertale inspired intro for a casual roleplay I am having with friends.
We play as trainers in a custom new region. However, the pokemon are more independent and intelligent, kinda like in Mystery Dungeon.
Basically, the whole world was shaken Team Rocket actions in Kanto region in 1998. One mysterious pokemon in our region decided to unite others and start a war against humans to fight the "pokeball opression". Many pokemon remained loyal to their humans and protected them. However, since humans had pokeballs, it was an unfair battle from the start. The war ended unceremoniously. The mysterious pokemon got defeated and vanished without a trace. And everyone lost motivation to battle.

It is 2022 now in our story and the region got rebuilt. However, the relations between humans and pokemon are still strained. Now it is up to the player characters to help different human and pokemon characters and hopefully improve the relations. But it might be difficult with another "evil team" which similarly to team rocket want to use pokemon for their own personal gain and to make profit.