You dab a cotton swap on Jin's bruised, cut lip,

"Ugh! Sh*t! Watch where you-"

He was cut off as you pressed the cotton against his bleeding lip.

Jin is the renowned apathetic, delinquent-like, clumsy student that often got beat up. You're the nurse's assistant that works to treat other students in need of help. You often see Jin since he's always got bruises on his body.