You are either a native of the Galar region, or a tourist visiting the Galar region from another region. The Galar region has always been peaceful. But one day, The Pokémon suddenly Dynamaxed and started destroying the gym. The number of Dynamaxed Pokémon continues to increase, and the Galar region is increasingly in danger. Are you the ultimate hero who will calm this chaos, or are you a shadowy figure who will make this event even more terrible?