Lee Chaerin has to write an article about brainy people and finds that Kwon Jiyong, professor of history of art, is the perfect subject. But Lee Chaerin thinks he is snob and Kwon Jiyong thinks she is idiot.

Lee Chaerin, young fashion journalist working for the Korean Cosmopolitan magazine. Her dream is to attend the Paris fashion week this year. But her boss chose her enemy, Kim Park, to follow him at Paris. She’s independent, free, single and, hearing from her bestfriend Bom, a maneater. Indeed, she likes handsome and famous guys a lot. When she has to write an article about smart guys, she decides to seduce and observe Kwon Jiyong to prove smart guys are not y.

Kwon Jiyong, young art teacher at Seoul College. His dream is to fly to Paris to visit its museum. He is proud of himself, arrogant and looks down at every people who aren’t as intelligent as him. He’s living with his bestfriend Seunghyun and doesn’t seem interesting into love relationship. He’s fond of Picasso, books and tea.

Park Bom, young assistant at the Korean Cosmopolitan Magazine and Chaerin’s bestfriend. She’s dating Choi Seunghyun.

Choi Seunghyun, young lawyer and Kwon Jiyong’s bestfriend and roommate. He’s dating Park Bom.