When Han-Na struggled as she looked for a job, she found comfort in a certain bakery's citron cream pastry. She sent a letter to the baker, in both gratitude towards him and curiosity about the recipe, to which he responds. From there, they continue sending messages to one another. And even though the two don't know each other's faces, they begin developing a relationship that feels strange but special. Then comes the long-awaited first meeting with the baker! But… the baker is so cold?!