Pokémon's Way to Become Stronger

Introduction: Many years ago, there were no such creatures as Pokémon, but I don’t know where this kind of creatures came from?Where did it come from?It suddenly appeared in people's field of vision.People call them in different ways, some call them elves, others call them Pokémon.But whatever they are, they are our friends. (Let's see how the heroine becomes stronger so that no one can bully her)