In the village of Isuapac.... A sleepy little town in the outskirts of London in 1879. Including little shops, inns, and little common manors. Stories of creatures of the night disturb the peace of humanity in the village. More night creatures means less humans in existance. According to religion, vampires have been the agents of Satan responsible to the sacrifice of blood from a mortal. From fear, humans become hunters against the undead blood eaters. All vampires serve the master by sacrificing a mortal for their blood during a satanic ritual every three days. Hunters will kill and protect the village from the creatures. All vampires will kill a human except one. Someone touched his cold heart from a killer to protector to one girl he fell in love at first sight. Since thier relationship got discovered, his whole kind will hunt this girl down and make her the Satan's princess by only one drop of her blood. Will the protected vampire help this girl and love her or will her sacrifice make them lose each other forever?