You're at the Math class.

You aren't understanding anything, so you started to not pay attention.

Then your professor, Han Jisung, noticed you. "God... you always not pay attention to me and to my lessons! That's why you always have bad grades!" he said scolding you

"I'm sorry professor" you said looking down

"I don't want to hear your excuses now... I want to talk with you after the class. Undestood?" he said annoyed