The background of the first male lead Leo Yeon
The only son of the Leo group which invest in real estate and plays a great part in Korean politics.
They are well-known investors and are treated like a celebrity.
The background of the second male lead
Seo Sejong
The second son of the SEO group which invested in the entertainment industry and fashion designing. They own several mansions and are also well known for their movies.
They are a family who doesn't keep a low profile as they are in the entertainment industry.
The background of the female lead Hope
The daughter of ASV company which is an underground organisation that is filled with talented people who contribute their life to the improvement of technology. As it is an underground organisation the identity of the board of directors, CEO and staff are also hidden except for the general manager who deals with the government. He is the only person in the company whose identity is well known to the whole world. They have a lot of money and are super-rich.