Sunghoon was your math teacher. You had to start going to private lessons in order to get your grades up, and you did improve little by little, but you still struggled to understand.

You were at home and the teacher was explaining the class by pointing to his notebook, but for some reason, your brain wasn't paying attention to it. Sunghoon snapped his fingers to get your attention. "Hey, are you listening to me? I'm explaining. Your eyes go here, okay?"