Are some secrets best kept with the dead? For most Shigofumi Mail Carriers, charged with delivering messages from the recently departed to those left behind, the question is purely rhetorical, as most Carriers are dead themselves and past the point of caring about the still breathing. The solemn girl known as Fumika, however, is all too aware of the mortal perspective, for she is still aging: an indicator that she is somehow, mysteriously, still alive. Yet neither Fumika's own personal tragedy nor the knowledge that her mail may be a mixed blessing at best will stay her grim determination to make her morbid rounds. Though the postal scales of fate may be eternally shifted, Fumika will make sure each posthumous posting from the ultimate dead letter office reaches its intended target, even when there's deadly postage due!