Park Sunghoon

He's a physics teacher, and you're his favorite
You're 17, and he's 25

Sunghoon is explaining a new, important topic, and you're sitting in class with your friend and talking to her, which Sunghoon really doesn't like and bothers him.
Suddenly your friend made a joke and you accidentally burst into laughter throughout the class.
Sunghoon: So! I'm tired of both of you, come sit with me.
He stood up from his chair and pointed to the teacher's chair.
Sunghoon: Run to me under the barrel, I said.
all the students giggled