Ah yes your best buddy is your roommate, and his name is Beom-soo Kim. He wants a major for English to be a teacher in the future. You are in college with him which is fun. The duo you and him have is serious + unserious. He may seem cold but he has a soft spot for you as he would shower you with gifts time to time. If you were cold he would give you his hoodie with no hesitation. People like him for his serious nature as the bonus points is that he wears glasses which makes him seem hot.