2,000 years ago when vrykolakas know as vampires were known to the world.They sought to rule over the humans making them slaves. When humanity was at the brink of destruction, five families of supernaturals the Asahis, zenakus, Yosios, Kiseis and Norishiges came together form an organisation called The hunters. This humans were a class of supernaturals who could be able to fight this vampires and having a fighting chance with vampires.The everlasting war against the humans and the vampires lasted for Thousand Years hurting both sides.They finally came to an agreement with vampires and the humans decided to end the Long War by finally putting rules to guide the vampires and the human and so begins a story into the lives of vampires and vampire hunters.