Yoon Doo Joon and Lee Hyun Mi are know as the ' Inseperable Best Friend ' Alot will often misunderstood them as a couple . Hyun Mi is the role model to girls while a ideal type to boys . Yoon Doo Joon is the nerdy - hot guy thats on every fanfic possible . Little did they know , they both have feelings for each other but wont admit it themselves .