Who Is Sonia?

While you travel through The Galar Region, you will occasionally run into Sonia. She is the granddaughter of Professor Magnolia and is actually her Assistant, also being the old friend of Leon. Sonia will be the one to give you your Pokedex early in the game, and she will attempt to unravel the secret origin of both Zacian and Zamazenta when they prevented the Darkest Day from happening centuries ago as your own adventure progresses. Due to Professor Magnolia's age, you will, believe it or not, run into Sonia far more than the Professor. At the end of the game, Professor Magnolia will decide to retire and Sonia will become the next Galar Region Professor.