Blood Lad #1 - Volume 1

This manga follows Vlad Charlie Staz who is the elite vampire ruler of the Eastern section of the demon world. While he is seen as a terror by many he is a otaku who spends most of his time reading manga and studying Japans culture. One day a Japanese girl Yanagi Fuyumi gets lost in the demon world and ends up being in Vlad's turf and is apprehended by Vlad's gang. While freaking out that a human woman is in the demon world Yanagi is eaten by a carnivorous plant and Vlad swears to bring her back to life.