The world stands still. Years have passed since The crisis with Gardevoir or the Time Gears, and many of the "Mystery Dungeons" began to fade away. The people have forgotten about the heros who once saved them, and many towns have been built on top of where the dungeons used to be. Yes, this world stands still.
To cause it to move once more, a mysterious force brings 7 Pokemon from beyond the Realm of Dreams. A voice commands them, "find your purpose, fulfill your destiny....and disappear."