The leader of the Korean girl band "After School", and one of the most respectable female dancer in the Korean entertainment world. She left her hometown to pursue her dream as a dancer. She was the back-up dancer for a lot of reputable singer, most widely known for BoA. She was also a member of the dancing girl group "S Blush" before joining "After School". She is the dancing teacher of Son Dambi, and very loved by the male idols in Korea, e.g. 2PM, Super Junior, Lee Junki, etc.
A: Who's this girl? She danced soooooo well?
B: She is the female beast idol, the dance machine Kahi!