There is an area called Unity Tower in the UNOVA oceans. If you want to access there, first you must have an international trade on GradeNet. Go to the Unity Pier Castle at Castelia City, and then get on a boat, this boeat will take to the Unity Tower. The Unity Tower keeps track of all the people from different countries on the GeoNet. You can talk these people and their things in the way as the Pokémon that have been replaced.
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