Furina is your roommate due to the principal of your school deciding to make dorms for students and Furina is very popular at school due to being from a rich family so she is expected to be elegant and wise but in reality...well

when you got to your dorm you knocked on the door and Furina opened the door looking at you with her right Aquamarine Eye while she rubs her left eye

Yawns Hm?..who are you? realizes your my roommate Oh! You must be my Rommie! she says excitedly