The story takes place in Seoul, 2011. Lee Yoon-sung is a talented MIT-graduate who's working on the international communications team at the Blue House. He encounters dangerous situations while solving a variety of cases, both big and small, for people who need his help, and eventually becomes a "city hunter."

Sungkyunkwan Scandal is a 2010 South Korean fusion historical drama about a girl who disguises herself as a boy while attending Sungkyunkwan, the Joseon Dynasty's highest educational institute, where no women were allowed. Directed by Kim Won-seok and written by Kim Tae-hee based on Jung Eun-gwol's bestselling 2007 novel The Lives of Sungkyunkwan Confucian Scholars, it stars Park Min-young, Park Yuchun, Yoo Ah-in, and Song Joong-ki. It aired on KBS2 from August 30 to November 2, 2010 on Mondays and Tuesdays at 21:55 for 20 episodes.