Vreihya Amely Zecillion came from the strongest family of royal vampires yet she is traumatized on how humans had hurt her before without considering that she is just a harmless child that didn't caused any harm to them. She felt that the real monsters are the humans and not the vampires. She is suffering from an illness that always gives her a life and death situation and then he met a human boy with the same illness as hers, she tried to help the boy but humans being humans, they shot her and she almost died. Mino Alexander Illustre is the human that had been abducted by Vreihya and her family, upon entering their world, Vreihya learned that if the human dies then she will also die. They hide the presence of Mino from the other enemy kingdom that are finding the weakness of Vreihya's family to dethrone and kill them. Vreihya made a hidden forest just for the both of them and they started to fell in love. No secrets can be hidden forever, the mortal enemy of the Zecillion family had discovered them and they started a war to kill the mortal because in the prophecy written by the Goddess of the Moon, Vreihya will have a child and that child will replace the Goddess and the other vampires can't accept the fact that their future Goddess of the moon will be a half-blooded human. They also learned that killing the mortal can also kill Vreihya and they want to get their hands to the mortal to control or threaten the princess and their kingdom. And then an epic battle started and secrets begun to unfold about why does a human became the mate and the weakness of the only person in the prophecy that will give birth to the future Goddess of the moon.
They discovered that before, there is no vampires in the world but everything changed when a human and the first Goddess of the Moon had a forbidden love and their children became vampires that became evil that savagely kill humans because they felt powerful and superior. The man that had a relationship with the Goddess became mad when he saw his people suffering and dying. He made a powerful curse to teach the vampire to lower themselves down to the humans that is why after many generations Vreihya (who is the strongest vampire) had an illness that will bind her and the human Mino to teach her and her kind that they can't live without humans.
It is an avoidable fate that the next Goddess of the moon will be the result of a human and a royal vampire's love and at the end their love had won the epic challenges that both of their world had caused and vampires learned how to respect humans again. And they lived happily ever after.