This time round Son Ye Jin becomes the lover of Lee Byung Hun. It has been finalized that Son Ye Jin will play in the upcoming spy drama “IRIS” that is scheduled to air in the first half of 2009. Son Ye Jin plays as Lee Myung Hee, an agent of NSS, a national intelligence agency.
“IRIS” is a collaboration between director Kang Je Gyu and Taewon Entertainment. The director of KBS2TV’s “Sorry I Love You”, Lee Hyung Min, will also be participating in this mega production, which boasts of 20 billion won in production cost.
In the drama, Son Ye Jin plays an NSS psychological analyst who has a sensitive mind and is able to carry out effective preventive measures to thwart terrorist activities. In addition, she plays an important role in aiding Kim Hyeon Jun (Lee Byung Hun) to enter the NSS. As Son Ye Jin is a psychological analyst in this drama, it is expected that she will not have too many action scenes as opposed to the other characters.
Son Ye Jin will challenge a role that is very different from her recent roles in drama “Spotlight” and movie “My Wife Got Married”.
After the promotions for her new movie “My Wife Got Married” is over, Son Ye Jin will officially begin her filming in the drama “IRIS”. In a recent interview, Son Ye Jin expressed, “I will not be discouraged because of the viewership ratings in ‘Spotlight’. Instead I wish to attempt another television drama”.
“IRIS” is a 20-episode drama which is scheduled to air in the first half of 2009. The filming will begin in November.
Source: Donga
Son Ye Jin as Lee Byung Hun’s Lover in Spy Drama ‘IRIS’ | Hanfever Korean Drama
mrkpop.wordpress.com 
Son Ye Jin is better than Kim Tae hee…
I’m confused… so Lee Byun Hun has two lovers?
as you can see in this post: https://mrkpop.wordpress.com/2008/10/10/kim-tae-hee-is-lee-byung-hun%E2%80%99s-lover-in-iris/
SYJ had a conflict with the filming schedule and had to drop out.
I like KTH as the replacement 🙂