Ash has defeated every evil organization except for team rocket, so he went back to Kanto only to find that this was a big mistake. Now he refuses to say anything about he saw back in Kanto. He doesn't want to relive that memory...and not being able to do anything. He fears that someday it will happen again, so he goes back to Kalos. But on moving to Kalos only slowed his fate.
If you want to know more, read the story. I know it may not be good, but at least tell me what you think. I don't own any characters or any of the pictures used in this story.