Hana (You) loves Love Stories—so much so that her life has begun to resemble one. With her awesome job and a "Mr. Perfect" fiancé, Kim Jonghyun, she lives a dreamy life. But then comes Taemin, who brings a fresh joy into her life. Taemin is an assistant to a director who is famous for his love story films; however, Taemin hates love stories. He is a Casanova and a disbeliever of love. He first hates Hana for her obsession with romance, and Hana also has a bad impression of him, but soon after, the two become best friends.

What if soon after, Hana deeply falls in love with Taemin? 

What about her fiancé? 

Moreover, what about Taemin who only liked her as a friend and nothing else?

How will she deal with this big obstacle in her oh-so-soothing life?