The spirits of the freshly decedent are provided a single final desire. If they so select they may compose a note to one yet-living human. The core of the transmitter, their concepts and emotions, are set up hardly in this letter, called a Shigofumi.
The opening theme, "Kotodama", is performed by Ali Project, and the single was released on January 23, 2008. The ending theme is "Chain" is performed by Snow*.
