Kim Hyun Joong and Heo Young Saeng are childhood friends HYS always had feelings for KHJ and KHJ also showed signs of having feelings for HYS but he never really said anything to HYS . Kim Kyu Jong is HYS best-friend ( as always ) and later he meets U-Know ( TVXQ ) and is going to play an important role in HYS's life , KHJ's best-freind is JaeJoong ( JYJ/DBSK ) and helps KHJ because they are like brothers. A complex love story with LOVE , JEALOUSY  and HEARTACHE