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."

Oh! My Lady is a romance comedy TV Drama in Seoul Korea under SBS Network. It was first aired on March 22, 2010. It is a romantic comedy about a top star who finds himself living with his manager, a 35 year old woman who is trying to earn money to get custody of her child. The first episode of Oh! My Lady scored 10 percent according to TNS Korea and 11.5 percent by AGB Nielsen Media Research.

Jang Mi-ran has been widowed for the last 5 years after her husband died in an accident. She has four kids and is busy all day running a household. Fortunately, her husband's company, Saewang Constructions offered her a part-time job out of special consideration to her plight, so she was able to support her family.