Seras Victoria

Seras was originally a police officer who, along with the rest of her squad, was sent into Cheddar Village to investigate a priest responsible for multiple homicides. A vampire disguised as (or possibly formerly) a priest had taken control of the town and turned its inhabitants into ghouls. The vampire took Seras hostage; unsure if she was a virgin or not, he planned to use her to ensure she would turn into a ghoul after he drank her blood. When Alucard arrived, the priest used her as a human shield to coerce Alucard into letting him live. Alucard asked her if she was a virgin, and when she confirmed that she was, he shot through her to kill her captor. In her final moments of human life, she was given a choice: to die as a human or become a vampire. She chose to live, and Alucard turned her into a vampire.