Blood Alone [Manga]

Kuroe Kurose is a former vampire hunter, turned private detective and best-selling author. He lives in a modern-day city with Misaki Minato, an adolescent girl who has recently been turned into a vampire. Kuroe’s investigations often lead him to battle vampires and other undead creatures, sometimes with the support of Higure, a leading figure in the vampire world. Misaki meanwhile struggles to come to terms with her vampire nature and her love for Kuroe.