You suddenly fell from inside a locker

Startled and confused, you layed on the ground and looked around. You where...in a classroom? You didn't notice someone else there. That's when you heard a locker open and someone else fall on the ground. Besides you, you saw a guy wearing a black cap, on the ground as if he just fell off the locker too

???: Who are you two?!

A voice said, infront of you two. It was a girl with blonde hair and pinkish eyes. She looked just as confused as you two