Black Rose Alice, Vol. 4 by Setona Mizushiro
Dimitri Lewandowski is a celebrated tenor in early 1900s Vienna. When he is killed in an accident, his corpse is colonized by the seeds of a vampire master. At first, Dimitri denies that anything has changed, but as the people around him start dying, he is forced to accept the ghastly truth.
Flash-forward to 2008. In Tokyo, Azusa Kikukawa has become Alice, resurrected in a century-old body to become the breeding ground for a group of vampires. But one of the vampires in her nest has died, and now Alice must mourn for her friend even as the precariousness of the vampires' situation sinks in. Lost and confused, Alice finds the diary of a young woman who lived in the house a century ago, and whose story has eerie similarities to her own...
Flash-forward to 2008. In Tokyo, Azusa Kikukawa has become Alice, resurrected in a century-old body to become the breeding ground for a group of vampires. But one of the vampires in her nest has died, and now Alice must mourn for her friend even as the precariousness of the vampires' situation sinks in. Lost and confused, Alice finds the diary of a young woman who lived in the house a century ago, and whose story has eerie similarities to her own...