Ash has decided to leave Alola and return to Pallet Town before he decides to travel the entire Pokémon world, but he cannot quite bring himself to tell the others. Lillie, Gladion and Lusamine will also be leaving Alola soon to find Mohn. In addition, Team Rocket has been ordered back to Headquarters and the time to part ways with Mimikyu, Mareanie, Bewear and Stufful is rapidly approaching. (Source: Wikipedia)