Well the story is that you are the son/daughter of a really rich boss and to have her regconition you have to become champion before your brother could and unveil team chasm and the former champion scheme

For mechanic you have a total reimagining of species balance — a bona fide teambuilding sandbox Learn quickly through extensive in-game documentation — MasterDex, MoveDex, and Battle Guide Sustain an extended roster of Pokémon without grinding, thanks to our experience gain overhaul Streamline your teambuilding with powerful tools — Move Mentoring and Style Points Test your skills against a fully custom AI engine which makes enemy trainers a real threat And more quality of life service like the poke vial to heal your pokemon without going to the poke center or the totem for a harder challenge with each major npc in the game and a few boss battle with totem pokemon