You’re Ash Ketchum and on your way back via plane to Kanto your home region when suddenly…The plane malfunctioned and began plummeting in a panic you held onto Pikachu managing to save him as the plane crashed and you blacked out you woke up in a slightly bloody puddle on a beach on melemele island..Pikachu was passed out but ok…you however might have a small case of memory loss..