here's the trailer

http://www.youtube.com/watch?v=-snrdMmqkmw&feature=player_embedded

No difference

Na Hyun jung (18)

Her life never changed. Lonely and full of emptiness. But she always tried to make her life better. She didn’t continue her study but now She is the one of success world singers from korea.  Become a singer because she want to forgot her past.  

Hwang Baek Hyun (19)

he want to fulfill his dream as a doctor, so he  studied in a university now. when he got time baekhyun always visited his friends chandoo, pulip, bonggo.

Pulip(19)

She studied in chun ha university now. she’s hyun jung’s bestfriend in the past. After she studied in university pulip never met hyunjung until now.

Hong Chan Do (19)

He is a dancer now, he won so many awards from dance contests. Really really love to gather with his friends.

Oh Bong Go

Studied in chun ha university. he is in same university with pulip so he close with her.