Nia
As you begin your journey through the Ferrum Region, you will be introduce to Nia. Nia will quickly become your advisor as she gives you a tour around the Region, giving you helpful hints and tips along the way in various Game Modes. She can also impact battles you are in with certain Cheer Skills that you have earned.
Nia also has a number of settings you can adjust in your My Town Profile. For example, you can adjust the setting on the level of advice she gives you from the Normal Default Setting to Low or even Off if you wish. You can even adjust her Avatar's Clothing in these settings, and you will unlock more and more outfits for her as you defeat the various Leagues in Ferrum.