Vampire hunter D arrives in an isolated village to protect Doris Lang, bitten by the Nobility lord Count Magnus Lee and fighting to stay human before the transformation completes in the ruined world of 12,090 A.D. Magnus's daughter Larmica wants Doris dead rather than tolerate human interference, while the mercenary Rei-Ginsei stalks D for a rival bounty. This manga adapts Hideyuki Kikuchi's original 1983 novel.