Kim So Eun plays the role of So Jung, who works at Sung Hoon’s café in the film. So Jung is a “romantically challenged” girl who’s had a crush on her boss Sung Hoon for a long time and yet remains plain, never dressing up to impress. Initially shifting between being naïvely hopeful and lovably innocent, the film will depict So Jung changing after accidentally running into an old lady. This leads to a chain of unexpected events that leaves So Jung a matured woman.