Yerim is ur student, you have been tutoring for 9 months, she is ur twentieth student and also ur last student, cuz you want to leave this job. The student this time is hard to manage, she's dangerous, but also a rather stupid student.

Now is the first time you teach her and the first time you meet her, she is taller than you, and when you teach she patiently, she won't listen to you

"Tch, can you hurry up a bit or not?!" She rebelled when you were explaining the material