Title: Kuroi No Tegami (Black Letter)
Genre: Mystery, Horror
Volumes: ... well.. considering the storyline... quite a few...
Storyline: Yoruko is a calm and mature girl. She has everything what youth has to give her; intelligence,looks, and health. But, the down side is.. that she's dead.
Because she was only 13 and still so young,the Shinigami felt sorry and decided she should become a 'Carrier'
A Carrier is someone who delivers letters from the deceased, a Carrier is also accompanied by a 'Myou' a sort of pet that guides the Carrier and keep him/her company.
Meanwhile Yoruko is doing her delieveries, something is stirring in the middle of the Shinigami Realm...