'Yami No Matsuei' is the story of Tsuzuki, a Shinigami in one of the departments of the Japanese branch of the afterlife. (Yes, it's a bureaucracy. This explains a lot.)
Tsuzuki has a lot of problems, not least of which is the fact that he's not sure he was even human. But the most recurring is a human doctor named Muraki. Muraki is obsessed with immortality and has absolutely no morals or scruples. (If Muraki has ever heard of the Hippocratic oath, he certainly shows no indications of it.) Muraki is also obsessed with Tsuzuki. Whether he first became interested in Tsuzuki's immortality, or if he was gay and was attracted, is not known. The question is pretty much moot by now anyway: Muraki has made it clear that he will stop at nothing to get Tsuzuki, any way he can.
All Shinigami work in pairs, and Tsuzuki is no exception. His partner is Hisoka, the youngest Shinigami in the office. Before his death at sixteen, Hisoka was kidnapped and tortured by Muraki for three years. This experience has left the younger Shinigami more than a little cynical. He's also cursed. Hisoka is also about the only person in the office who doesn't have a sweet tooth.
There's a lot more to the story... but that's enough to make sense of my fanfic. For more information on the series, please go to my links page.