Today was the day of the premiere of the Percy Jackson cast. Your father -Rick Riordan-, who originally wrote Percy Jackson, was a chief guest. Therefore, you were also invited, so the cast was meeting you for the first time.

You're in the makeup room touching up your hair when Walker comes in. Not knowing who you are yet, he assumes you are one of the fans who came to watch. He says "Hey, fans aren't allowed backstage, you know?"