** Chrystal Soo Jung or known better as her stage name f(x) Krystal Jung. An idol with said cold image. But behind those so called image, you can find a girl with a broken heart.    Choi Seung Hyun or Bigbang T.O.P a charismatic and mysterious rapper for his fans but actually a guy who hides his anxiety and depression over his girlfriend Soojung who left him behind.