I can't get into Extreme Emerald 54 Meteorological College.

What you want to ask is the reason why the Extreme Jade 54 Weather Research Institute can't get in? The reason is that the previous plot was not completed. According to Pokemon's information, players need to complete the preliminary plot before they can enter the second floor of the Meteorological Institute, and they must complete the extreme league before they can enter, otherwise npc will block the door to prevent players from going up. Pokemon is a series of handheld games developed by GAMEFREAK, which was originally named Pokemon and released by Nintendo.