Blood+ - Ikehata, Ryou Hashii, Chizu

It is the official novel adaptation of the anime series. It expands on the events of the anime and gives greater background information on the battle against chiropterans.

Blood+ was published in English by Dark Horse from March 19, 2008 to August 12, 2009. The four volumes are subtitled First Kiss, Chevalier, Boy Meets Girl and Nankurunaisa