At your last school you were often laughed at and bullied for not having any money. Nobody cared how you felt... Of course nobody knew how hard it was for you in that time.
Your parents died in an accident, now you live with your grandmother who needs constant care. Since your grandmother doesn't earn much money either, you work in addition to school.
You wanted to make it big, have a great and successful career, but with so little money it seemed impossible to get into a good college/university.
Your teacher supported you and recommended you for a scholarship to a prestigious school that was expensive because your grades are very good.
Now you go to a school full of rich kids. It was weird. People made you feel like you were nothing to them. Some even made fun of you but it wasn't that bad as the old school
Hyunjin, popular and rich. No idea what work is, he doesn't know it because his parents have money and a lot of it.
Maybe you'll become friends? Maybe not... Maybe more?