For over five millennia a very honorable vampire king named Atem ruled the vampire realm. For he was the wisest and the most honorable one of them all. For he believed that a vampire should live an honorable and selfless life. He was very much loved by his people and he respected all kinds of life. So much, that he declared to make a law to ban the use of human blood drinking and instead drink animal blood. He declared that his people were to only drink human blood if the vampire was allergic to animal blood or if they had to use self-defense. Even so, he declared that they were not to drink enough blood that would kill the being or animal and wipe their memory of the incident if needed though he was very much loved by his people.
There were some who were disgusted at the new laws and decided to live the way they wanted to live. For they had no respect for life and would do anything to get what they wanted. It was because of this four millennium ago King Atem decided to banish the beings and decided to name them Malign. The feeling was mutual so they too decided to rename them Brio. It was because of this a war between the Malign and the Brio began and their feud was very much bloody. With so many lives lost, the king decided to hide the vampire realm from the humans and decided to banish the Malign from the human and vampire world so no more lives would be lost. Now because some of the king's people were allergic to animal blood. Atem decided to have a portal from the vampire world to the human world be created for those who can't stand animal blood. With that being said he told his people that the laws of his land were still enforced and that they were not to kill any human being and to wipe their memory when they were done.