The setting is simple: it's a story about an onee-san who confessed to a JK and got rejected (naturally since they barely know each other) but they start off from being friend and slowly get closer together. Characters has distinguise characteristic that doesn't get mixed up together and the story's flow is a nice slice of life that is easy to get into. It's a kind of story that you can read slowly on a slightly chilly night sitting on a cozy sofa with a warm drink in one hand. 😊