Janna is a fearless and extraordinary girl who's not afraid of facing all kinds of danger. A combat fighter, black belter and sharp shooter. She's talented and professional when it comes to her job. She's just a normal agent before but not after her lover's death. To find the culprit, she accepts the duty of being the black agent of the organization she belongs to despite the risk of becoming one. Her confidence to finish every mission is beyond expectation not until she meets Gavin Dark Adams, the hottest and famous professor in Global International University of Medicine. Professor Adams got the perfect physical features that every girl adores to own but his lifeless blue eyes got her attention. It's something that lies a mystery behind his personality. What will she do when she finds out that Professor Adams is not the person who she thinks he is? Will she finish her mission or will she meet her first downfall?