Yei is a very quiet girl who doesn't really  like getting a long with people. She wishes to but its to hard for her if she lost them too, thats the only reason why but she never told anyone. At times she can cute and......puppy-like, then at others she can be emotionless and serious. Yeseul takes her dancing and rapping very seriously nd when she is focused in her dancing no one can break her trance.

Her mother was a doctor and he father was in the army. When he father went away for the korean war he died in battle. That was right after her 12th birthday which made her even sadder. She loved her parents very much but had a closer relationship with her father so when he died she was heartbroken. Her mother had a brain tumor and yei was so afraid of when he mother's brain would just give up.

Just like Yei. Quiet and  emotionless most of the time but can be cute and puppy-like.

Met when she was wondering around woollim to find the boss's office and have been friends since then. If only they could be more since both have feelings for each other.