It expands on the events of the anime and gives greater background information on the battle against chiropterans.
[1][2] The first volume was released in Japan on May 1, 2006 by Kadokawa Shoten under their male-oriented Sneaker Bunko label.
[2] The second adaptation, Blood+: Russian Rose, is a two-volume series written by Karino Minazuki and illustrated by Ryō Takagi.
The series, published under Kadokawa's more female-oriented Beans Bunko label, details Saya and Hagi's lives at the start of the 20th century and the Russian Revolution.
[2] Both novel series have been licensed for release in English in North America by Dark Horse Comics.