YoonNaNa is a famous bartender at XX bar. She is proud of her job and her position as a bartender. She doesn't get involved in other parts of XX, like choosing menu items or setting up the interior. Her dream is to open her own bar. One day, a new owner of XX shows up in YoonNa. She is Lee Roo-Mi. Five years ago, the two women were best friends, but something happened between them. YoonNaNa is mad at Lee Roo-Mi. Now, Lee Roo-Mi tries to reconcile with YoonNaNa, but it's not easy.