Alfred, an alchemist, has been thrown out by an old friend and driven out of his workshop. Wandering the streets at night, he met a beautiful nobleman who offered him a chocolate drink. Alfred took notice of the well-off young man and tried to get close to him, but… The nobleman turned out to be the most powerful vampire of all, Sin. Alfred had his blood s**ked and was imprisoned in the vampire’s residence. The condition to be released from the status of a mere livestock? “Make the ultimate chocolate for me.” Alfred has to put his dignity and pride as an alchemist on the line and start making chocolates.