Lee Jonghyun is one of the successful chaebol with the business. However he also known as playboy  Girls always attracted to him especially his dimple smile. However, he still one of the over-protective towards his sister. Meanwhile, yoona is opposite. She is calm and mature even she is only 22 years old. To support her families she work as clerk at SM company and other extra part time to gain extra money. ForewordDeal?Deal, we will be married..Sure....I will help you like i promisesTq..Friend?Friends...