There are some things that individuals are unable to speak while alive; for these, "shigofumi," or letters conveyed from the world of the dead to the world of the living, exist. When a person who has powerful emotions dies, they can generate a shigofumi, whether they are filled with love, longing, or wrath. It is the task of the calm and enigmatic Fumika to bring these communications from the dead. She guarantees that each shigofumi reaches its intended receiver, even if that person does not want to confront its contents, with the help of her talking magic staff Kanaka.