National Security System (NSS) Top 707 agents, Hyun-jun (left picture) and Sa-woo (right), are blood brothers who swore to trust each other and unchanging friendship for life. Both meet a fellow agent Seung-hee (middle picture), who is a psychological analyst and a professional profiler that plays an important role in NSS, and they fall in love with her. But as Hyun-jun and Seung-hee become closer, Sa-woo fights to suppress his feelings for Seung-hee. One day, the three of them are immediately sent on a mission to Hungary. When they successfully finish off their job with immaculate teamwork and are celebrating it, a message arrives to Hyun-jun asking him to meet in secret.
Baek-san, the executive of NSS, sends Hyun-jun off to a solo mission in Hungary. As he promises Seung-Hee that he will successfully complete his mission and go back safely to her, Hyun-jun accomplishes his secret mission. But before escaping, Hyun-jun gets wounded by his targets’ head security bodyguards. As Hyun-Jun calls the executive for help, the executive betrays the agent and tells Hyun-Jun that nobody will come to help him escape. Also, later he is shockingly betrayed by his most trusted colleague, Sa-woo. Then, Seung-hee attempts to help her lover, but a car explosion separates the two; both are misled to believe that the other person is dead. Hyun-jun is then saved by an unidentifiable voice and learns of the secret society called 'Iris'.
One year later, with the two Koreas about to be reunified, Hyun-jun makes his return for revenge. After spending a nightmarish life of betrayal and loss, Hyun-jun returns to seek revenge on those who threw him into the living hell. With the help of the President, Hyun-jun returns to his post in the NSS. Starting a fight against ‘Iris’, the secret society that tries to interfere with reunification, Hyun-jun now puts everything on the line for the battle of his life.
Character Analysis
Hyun-Jun KimGenius with brain and is very cold, but does risky daring actions.
He is a NSS (National Security System) top agent and a top sniper who was an orphan at the age of 7. He doesn't have much memory of then because of the shock of his parents death. He lives on with loneliness life until he meets Sa-Woo, his best friend. Sa-Woo fills in as his friend and brother in his life. Both Sa-woo and Hyun-Jun goes to 707 corps to be qualified for agency, and they both later get accepted to NSS. Hyun-Jun is very charismatic, smart and cool-head, that he carries his missions perfectly. He is skillful in handling guns and fighting, and he is known to have a gift of seeing something and memorizing it right away. He meets Seung-hee, who become his life and they both fall deeply in love.
Seung-Hee Choi
Has a very seductive charm that catches two men's attention.She is a psychological analysist or profiler who works with Hyun-Jun at secret intelligence organization, NSS. She predicts terrorist's actions by tracking down their profiles and with the help of her fellow workers to prevent the terrorism from happening. When she meets Hyun-Jun, she first denies him, but later falls in love and go on a relationship with him secretly. She is very straight for
ward with feelings, actions, and words that she is known to be over-confident in anything. When Hyun-Jun falls in betrayal and danger, Seung-hee tries to help him out even though her actions are against her job.
Sa-Woo Jin
Carries out duties with confidence and without mistakes
He was always the best, but ever since he met Hyun-Jun at 707 Corps, he was always one step back from the best or 1st. When he got into the NSS organization, he falls in love at first sight for Seung-hee. But even in front of love, his friendship with Hyun-Jun always came first so he keeps his feelings to himself. But when he got an order to get rid of Hyun-Jun from NSS, he starts obeying to national commands and thinks of Seung-hee's sake rather than his friend. Would he be betraying his own best friend, Hyun-Jun?
Sun-Hwa Kim
Doesn't care for her own life just for the given order
She is North Korean security agent who follows her boss, Chul Yung, like a shadow. She is ordered to chase after Hyun-Jun to pay for his actions as agent, but ends up falling in love with him after Hyun-Jun saves her life. She even betrays her own boss just to save Hyun-Jun, so later gets discarded by her own country.
Chul-Yung Park
Has soft and sharp charisma that keeps his own justice
He is a team leader for North Korean security agents. Due to being dedicated to what he is working, he believe to die for his beliefs, and once he sees his own target, he never gives up until that target is caught.
Vick
Believed to only exist to just get rid of the target
He is an assassin for IRIS, a secret organization that is a hidden and secret in United States. He is very cold-blooded and only follows the command, that is, to kill Hyun-Jun. He is a killer with 100% of killing rate. He will kill until that person is completely dead.
