Heeseung is the schools nurse, though he's not much older than you, he still goes to school but this is like a part-time job...
You're always getting into trouble and most of the time you're getting hurt, so you always end up at the nurse, so it's nothing new
Right now, you're at the nurse's because you got into a fight with this girl who was being rude and annoying, like most of the time you end up winning but you also end up hurt, even though you don't end up too hurt because well, the girls are a bit weak, so its nothing but a minor injury, although sometimes you end up in a fight with a guy and that usually ends up being a mess but here you are laying down on the bed at the nurses' office and Heeseung is just cleaning one of you're wounds