Ah Yeon looks sensual in those short tennis outfits she always wears. When Min Seok, a successful prosecutor encounters Ah Yeon in a parking lot of a tennis court, he happens to provide her with help unexpectedly. He later gets contacted by Ah Yeon frequently. Although Min Seok, the married man tries to refuse her excessive hospitality towards him, it’s not easy to refuse. One day, Min Seok receives a correspondence saying he is accused of bribery and then he realizes he might lose his position as a prosecutor. While his relationship with his wife has become unstable as well, he cannot stop thinking about Ah Yeon. He after all begins the relationship with Ah-yeon he should not have started.

Jang Geu Rim (Kim So Hyun) is a student at an arts high school who dreams of becoming a pop singer. At school she gets a new roommate, Irene (Sun Woong) who’s actually a boy. Irene’s persona is a pretty Female CF star and his actual name is Hyun Woo.