MY SECRET ROMANCE

Cha Jin Wook (Sung Hoon) is the son of a wealthy family. His family owns one of the largest companies in the country. It is the second-generation chaebol, indifferent and cold that loves fun. He is the typical rich playboy who only has romances, a man of which every woman is crazy, but he feels nothing for them and enjoys parties and clubs, always being the center of attention wherever he goes.

Lee Yumi (Song Ji Eun) is a young, single 25-year-old woman with a bright personality who does not do much with her appearance, she does not wear make-up or bother fixing herself, is very informal and unconventional. Her mother was an erotic actress and that changed her life from the moment she found out. Due to the bullying he received at school, he began to dress conservatively, which is why he shows such an appearance. She has never had a date before, so she is surprised at herself when she meets Jin Wook and spends only one night with him after being delighted by her cunning and playful personality.

After having an adventure of one night, she disappears in the morning, something that to him bothers to him, since he knows absolutely nothing of her, not even its name. But as if a spell had been dealt with, it began to change, going from being a party playboy to being a workaholic businessman who does not enjoy the pleasures of life.

Three years later, both are surprised when she introduces herself as the new nutritionist in her company's cafeteria. Although she pretends not to remind him, they can not avoid their physical attraction and memories of that night, starting to wonder if that encounter that began as a night could lead to a more meaningful relationship.

Jung Hyun Tae (Kim Jae Young) is 28 years old and owns a bookstore selling coffee and beer. He and Yumi are childhood friends. He has feelings for her, but it is an unrequited love.

Jung Hye Ri (Jung Da Sol) is a young lady with the charm of being a 25-year-old beauty-brain who grew up in a very conservative family who made sure she was well educated and skilled. She has been in love with Jin Wook for 12 years and is convinced she will be his future wife.