The child of the vampire Count Ludwig and the human Lolita Sibel was born against the command of God and was cursed to kill his mother Lolita Sibel. He has silver-white hair and golden-green eyes, and is known as the "Son of the Godslayer."
After the death of his father Ludwig, he was expelled to the human world by vampire discrimination because of his special status.
As an immortal witch with silver hair, gold and green eyes, Victoria was adopted by the kind-hearted Medeste as the Duke. After learning about his life experience, he concealed his identity as a vampire. But because the blood was different from ordinary people's silvery white viscous substance, people mistakenly thought it was a unicorn cub, and started fighting for it.
After Medeste's family was annihilated by the Phantom Troupe and the enemy Hakka, the mysterious client who originally entrusted the Phantom Troupe and the enemy Hakka died. Unable to pay a large commission, he had to give up the commission. Victoria's whereabouts are unknown.
The eldest son of the Beaten Hakka family, Ilmi Beaten Hakka, was actually transferred to the underground black market for auction. Because of his special ability, he escaped.
In order to avenge her genocide, Victoria searched for the family of the mysterious client.