Gong Ah-jung (Yoon Eun-hye) is a government employee of the Ministry of Culture, Sports and Tourism.
At the beginning of the series, Ah-jung lies to an antagonistic friend about being married to not lose face in front of her.
The lie quickly snowballs (due to several misunderstandings) until Ah-jung realizes that everyone is gossiping about her supposed, secret marriage to Hyun Ki-joon (Kang Ji-hwan), the wealthy president of World Hotel.
However, after a series of events that bond the pair, they agree that pretending to be married for a short while would be mutually beneficial.
Ki-joon says that in spite of this, Ah-jung's lie is not forgiven, and he threatens to eventually follow through with his lawsuit.