David no Shinzou (Volume)

is the first volume of the David no Shinzou light novel series, written by Hisashi Suzuki and Illustrated by Hironori Ozaki. It was released under the Dengeki Bunko Imprint in August 2004.

Synopsis
It was an unrealistic story with a somewhat eerie color. -Everyone who draws Solomon's blood has a devil's heart called "David's Heart". A person with a "heart of David" must eat the heart of a person with the same "heart of David" within a week-if not? "He turns into a devil" Western doll When a girl named Mira told me that, she gave me a Japanese sword and iron gloves with long claws. It's like doing your best. From this time on, the world became my enemy. Heretical myths revived in modern times.

(source: Amazon JP - Translated)