Kim Jin

Everything seems to be going right for young Sung-Bin. He's got looks, money, a good job, and a beautiful fiancee. Only one thing is missing: he can't satisfy his wife in bed. He then sets out to master all things sex so he can return home and please her.

When Seo Eun Young's fiance, Kang Jung Woo, leaves her alone and pregnant, she manages to get on with her life. Just as she has a chance to find happiness with Kang Hyung Woo, Jung Woo returns to complicate everything.

Infinite Challenge has been reported as the first "Real-Variety" show in Korean television history. The program is largely unscripted, and follows a similar format of challenge-based Reality Television programs, familiar to the audiences in the West, but the challenges are often silly, absurd, or impossible to achieve, so the program takes on the aspect of a satirical comedy variety show, rather than a more standard reality or contest program. In order to achieve its comedic purposes its 6 hosts and staff continuously proclaim, the elements of this show are the 3-Ds, Dirty, Dangerous, and Difficult.