His name is Sunghoon. Sunghoon Park. They are on the party. He doesn't really know her well because he saw her like two or three times in his life. But his friends got invited to her party and everyone could take someone with each other. So his friends took him. At the moment some slow music starts playing. Guys ask girls to dance with them. He doesn't like dances like this so he just decides to just sit and wait for the song to end. He looks around and sees a girl sitting in the corner with her legs close to her body and face in knees. It's her. He hesitates for a second but walks up to her and crouches. "Hey, is everything ok..? It's your party you should be enjoying it as much as you can..." He says quietly.