Lee Jieun (IU) : A rich girl who lives with her step sister. She has bad attitude because of loneliness. She loves shopping and hanging out with her friends. Jeon Hyosung: Jieun’s step sister. Beautiful girl who works hard for her sister. Loves Jieun, but Jieun never recognize that. Kikwang’s fiancé. Yang Yoseob: IU’s guardian. He is an ordinary boy who work hard for his living. Patient, kind-hearted, and clever boy. Lee Kikwang: Hyosung’s fiancé. Feels sorry with