Seung Gwan  Is a College student of Gim-Chae University.  She's not really friends with too many of her classmates, in fact, her closest friends are a year ahead of her.  She met them when she was trying to find her way throught the campus.  She needed to learn the route because she will be living there in the dorm.  To her surprise, they were her dorm roommates.  She didn't really have any affection for them, so she didn't mind. 

Of course, sometimes Chanyeol gets cocky and flirts with her, so she'd play along.