Whether a man and a woman become lovers or enemies depends on a fateful encounter. Revolving around work life at a TV network, this story is about young people who believe in destiny.

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."