Seo Ji-an, the only daughter of one of the world's top ten conglomerates, lives in hiding to escape her father's excessive love and control. She chooses Jo Jin-seong as her marriage partner, wanting to live on her own, but Jo Jin-seong falls for Song Chae-eun, who pretends to be from the upper class. Ultimately, he abandons Seo Ji-an in pursuit of a powerful background. In a fit of anger, Seo Ji-an enters into a contract marriage with Kim Hyun-woo, who also sees this as an opportunity to escape his own arranged marriage. Thus, the two join hands for their respective goals.