Kim Seung Woo

Two very different men fall in love with Jang Mi Ri, a woman whose life is a complicated web of lies, propelled by her greedy desires that stem from an unfortunate childhood. Jang Myung Hoon is an ambitious hotelier who maintains perfect control of himself and his life, while Yutaka is the warm and gentle heir of a Korean-Japanese hotel conglomerate. Their love for Mi Ri and her tragic ambition eventually leads them down the path of destruction.

Two elite National Security System (NSS) agents, Hyeong-Jun (Lee Byung-Hun) and Sa-Woo (Jeong Jun-Ho), who were sworn blood brothers, both fall for fellow agent Seung-Hee (Kim Tae-Hee). Sa-Woo attempts to suppress his feelings for Seung-Hee and wishes the couple the best. Hyeon-Jun is then sent off on a solo mission to Hungary. In Hungary, Hyeon-jun accomplishes his mission and while in escape mode becomes wounded. Shortly later, Hyeon-jun finds out that he was betrayed by fellow agent Sa-woo. Seung-Hee attempts to help Hyeon-Jun escape, but a car explosion separates the two and both are misled to believe that the other person are dead. Hyeon-Jun is then saved by an unknown voice and learns of the secret society "IRIS". One year later, Hyeon-Jun returns to Korea to seek revenge. During this time, the two Koreas are set to reunify, while the group "IRIS" are intent on stopping the reunification.