Han Eun Yoo a young girl who is free, rich, and wild. The only daughter from the Han family along with the only son Han Jae Joong. As she grew older her parents were the traditional people who still believe in the old rules about engaging two child at an early age. So one day Han Eun Yoo decided to dress up as a maid and went to work at his house and see what kind of person he is after he returned from China. What will happen when Kris the fiance of Eun Yoo have a girlfriend also?