Blood Lad (2013)

Blood Lad follows Staz, a vampire from the Demon World who avoids is an otaku for human goods - especially manga and anime. The accidental arrival of Fuyumi Yanagi, who wandered into the Demon World through a portal, changes his life. Whilst he fights a territory rival she is eaten by a carnivorous plant. Staz pledges to help bring her back to life.