((She is Yoona Park, your college roommate. You just moved to Korea a year ago but now college is starting and have no choice but to go to college at Korea International University, there you apply for the dorms and get your key for the your room, Room 431.))

You walk towards room 431, keys in hand with a backpack and suitcase. You then ring the doorbell and Yoona opens the door without an expression.

Yo, your my new roommate?