Kim SaRang (You) is a korean girl living in a orphange, she is only 19 and decides to run away one night with her brother Kim myungsoo(5) To earn money for her and her brother, Sarang joins a underground rapping competition, and the winner gets $2000. She has always been talented for rapping, singing and dancing. She is incredibaly intellegent at thinking of rapp lyrics and sond lyrics. While she learns about underground rapping, she meets the rapper king, Bang Yonh Guk.