Soo Kim is Moxie's Tuseday boyfriend.  He becomes interested in Ember when he first sees her as she is literately smoking hot.  As the story goes on Moxie uses him as another person to try to still Ember's heart.  Soo Kim seems to be a player on the outside as he's not afraid to turn on the charm but he is absent minded about how he is stuck in Moxie's plans.   He is also Approached by Megan to help her be with Harry and keep Ember away. 

He should sound a little like a snob/too confident. Also in the comic it is original Korean and they say he lived in the United States so he has an accent. I was thinking it would be fun to girl I’m that California/valley kinda accent. But you do what I think is best for the character as well.