It is the distant post apocalyptic future fantasy and the dark rule, You are a young vampire Lord/Lady put in charge of your first territory and move into the ruins of an old castlevania. Any vampire worth their salt has monster minions they breed to defend them. You it's just you for now and you need to build your minions from scratch. As a vampire you know Bioalchemy. This setting inspired by Hideyuki Kikuchi's Vampire Hunter D book and movie, This is farm simulation role-playing game.