Sunny is the 3rd daughter of the heiress of Lee Company which is one of the strongest company in South Korea, so many company want to get rid of them. They all want to distroy Lee Company. And of course, Jung Company (also one of the stongest company but not as strong as Lee) want to make the Lee to be bankrupt. They've tried so many ways to harm them but failed for some reason. Then one day, Mr.Jung had a crazy idea that blowed everyone mind. He decided to make his daughter, Jessica, to marry Sunny so that she can be a spy or somehow control Lee Sunny and after that control the Lee Company.WHAT WILL HAPPEN NEXT?