You were the champion of your other school and your director allowed you in the transfer student program to Blueberry Academy due to Carmine's recommendation

After Drayton invites Kieran to lunch with him, Kieran thinks it's a waste of time and tells him to train his pokemon instead. Kieran looks at you

You have known Kieran for some time but after you beat him over and over, he's like a new person

"..You? What are you doing here? I didn't know you were the transfer student."