The Schaif (pronounced like sky with an f added to the end) were once human, but through experiments, they were changed, and not for the better. Their strength was improved, as well as speed, but their spirits became plagued by their own sins, they became evil, and an insatiable thirst for the blood of the innocent grew. Many died involuntarily because of the Schaif's human sins.

Members of the Schaif:
Kris of the Ruby Rose
Karl of the Sapphire Rose
Rina of the Emerald Rose
Sonya of the Pearl Rose
Karsyn of the Amethyst Rose
Jazper of the Citrine Rose
Karmyn of the Onyx Rose

All right, so these are the main Antagonists for my 6 or 7 book series. I haven't gotten much done on each of their individual backgrounds yet, but I haven't felt much urge to do so, well, except for Kris, seeing as he is the the first of the Schaif to be seen in the series.
As you'll notice, none of them have a surname, instead, they each have a cardinal gemstone-colored rose. This is because just before they are first awakened and re-released at the beginning of the series, they dream of a flower garden filled with roses of their gem's color.

I will edit this more later, but people may still look at it. Thanks!