Despite being attractive, there are reports that Mugimaru, the café owner, is a playboy. However, this does not deter Roku, who is pessimistic, antisocial, and overly serious, from visiting the café because of how well the owner makes his coffee. One day, while drunk, Mugimaru accidentally pushes Roku down and asks if his liking of the café means that he also likes him. What will transpire between Roku and Mugi?