C h a r a c t e r s :
Kim Bum 

He is the son of Mr. and Mrs. Kim who owns a very Big Company called the SK Group. As he graduated, he turns to a new school name Gyeoonggi Suwon International School. He is a Freshmen. He often smiles alot and only talks if he needed to. He is mostly called the Superstar in school. He meets a girl name Lee Yoon Mi and after realizing that he can't live without her, he started protecting her from those who hated her. cause for him Lee Yoon Mi is the one can complete his perfect puzzle. He is often called "Shin".

Kim Soo Eun as Lee Yoon Mi

 She is the daughter of Mr. and Mrs. Lee who owns a very famous Company called the Lee Group. She is also a freshmen, She loves Sports, like volleyball and tennis, She also loves playing the piano.  She is one of the smartest in her class. But as Kim Bum enters her life she started liking him and eventually fall in love. Her family was invited to a party and to think she saw Kim Bum's parents. Then and there she soon enough got close with "Shin". will she continue to fell in love with him and completes his puzzle?