Im Yoona is one of the famous talented actress and model in South Korea. Dubbed as CF Queen. She's pretty, talented, kind hearted and cheerful.But behind the mask, she is just an ordinary girl. She lives alone. She was an orphan. She prefers to work only with one person. That person is her cousin and also her manager. She chose a very secluded place to live. She chooses a rooftop house rather than big condominium or penthouse. She always disguises herself as a tomboy. She is one mysterious celebrity. The media only can see her on-screen and in action. They never met her off-screen. She always manages to avoid media or paparazzi.

Choi Seunghyun is one of the famous entrepreneurs. He owns a television station company and several of modelling agency. His father was a millionaire in South Korea. He was known for his cocky and arrogant behaviour because of his wealth. But behind those mask, he is just a man that still longing for his mother. He prefers to be alone and always travel around the country in searching for calmness.

WHAT WILL HAPPEN IF THE KING OF COCKINESS AND THE QUEEN OF MYSTERIOUS MET?

HOW WILL THEY ENCOUNTER EACH OTHER?

HOW IS THEIR PERSONAL LIFE WILL CLASH WITH THEIR WORK?

WILL THEY BE FRIEND? OR THEY WILL BE ENEMY?

WILL THEY LOVE? OR HATE?

FRIENDSHIP?

LOVER?