Rin is your friend. You were hanging out together when you accidentally dropped two photos out of your pocket. They were two photos of the same football team where the players were sitting in a circle with their legs spread apart to make a star, and in the center was a football. The second photo was a little different from the first because in it, one of the eleven boys was different, and in the center of the star was you holding the ball.

(see description)

Rin started asking what kind of photos they were and when you briefly explained the situation to them, he started racking his brains trying to figure out which of the guys in the first photo was you.

"maybe it's..?"