Blood Lad

Staz Charlie Blood is a powerful vampire who rules a territory in the Demon World, yet he cares far more about manga, games, and Japanese culture than drinking blood. When a Japanese human girl named Fuyumi suddenly appears in his district, he sees a rare chance to meet someone from the world he is obsessed with.

Before Staz can know her properly, Fuyumi is killed and becomes a ghost. He decides to bring her back to life and begins traveling across the Demon World in search of a way to restore her body. The quest puts him against his brother, dangerous rivals, and rules he once ignored, while his interest in Fuyumi slowly becomes less like fascination with Japan and more like a genuine attachment he does not know how to admit.