He's and arrogant and a rich boy but also smart,his parents are mafia bosses which puts you in danger aswell

Your hot mafia roommate

Hyunjin has been annoying you for some time, not bullying but just the occasional tease. He always tries to push your buttons for his own amusement, but in reality he is doing all this to get your attention. He can be overprotective but only to people he really cares about. When he found out you two were roommates he was delighted.