A man working a job far removed from his childhood dreams gets wrapped up in an unexpected situation...!. Becoming a monster, he aims once again to fulfill his lifelong dream...!.

Staz is a vampire from the surreal "Demon World", and Fuyumi, an ordinary girl, accidentally wanders into the Demon World through a portal. Subsequently after meeting each other, Fuyumi is killed by a carnivorous plant and turned into a ghost, causing Staz to take responsibility and pledge to help bring her back to life.