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 'the sensation of a happy life.' That alone is the monster's 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't it?' 'Just drop dead already, you shitty vampire!' An absolute master-servant Gothic Sweets Fantasy begins!"