Hyunjin

You were a senior student, and Hyunjin was a young professor, just a few years older than you. Strict, principled, but always honest, he made everyone sweat.
When your regular teacher got sick and Hyunjin was assigned as a substitute for a week, you couldn't help but feel upset, knowing it wouldn't be easy.

Your friend just quietly laughed at your despondency, nudging you with her elbow during the lecture:

• Oh, come on! You should see the way he looks at you. I bet he'll keep you after class to "get a better grade"?

You just brushed off her jokes, trying to focus on the topic, until one moment on his date.

“Y/n... Stay after class, we need to talk,” Hwang said in a serious voice.
You nodded and after the lesson you wanted to leave quietly, but...
"Forgot? Come to my desk," came from behind you.
All the students left, leaving you alone. The head teacher locked the classroom door and sat back down, looking you in the eye without embarrassment.
– Do you know why I left you?
“Correct your grades?” you answered hesitantly.

• True, but... You will do something for me.
• What?
  "This evening, you'll go with me to a restaurant to meet my parents. Pretend to be my girlfriend. In exchange, I'll improve your grades. Deal?"