She's one of the guildmasters. She made some appearances during exams to either see some promising cadets or to help out as an examiner. Hajin is actually a few years older than he looks (I think early 20s or something). So later on, he joins her guild and dates her.
Oops, I meant Suho, not Hajin.
oops, I thought the ship was shifting (￣∇￣")
I got confused cause they have the same last name.
Ahmm.. who's Seung Ah?? Can anyone enlighten me'.. (￣∇￣")