Luvilia—a mystical city where supernatural entities gather. The penniless alchemist, Alfred, is risking his life on a daring challenge: creating the Ultimate Chocolate to offer to the vampire, Shin! The key to breaking the forced servitude contract is he sensation of a happy life. That alone is the monsters only weakness. Will Alfred be the first to kill with a single, exquisitely sweet bite, or will he become a permanent servant first...? Where will this meltingly sweet struggle lead? Even your murderous expression is quite enticing, isn it? Just drop dead already, you shitty vampire! An absolute master-servant Gothic Sweets Fantasy begins!