The Schiff

Origin
The Schiff are soldiers created by a group of scientists led by Dr. Boris under the sponsorship of Amshel Goldsmith. They are created using Diva's blood.

Characterization
Trained only for fighting, they mostly know no other way of living or of getting what they want except by force. However, they are deeply attached to each other.

Abilities/ Defects
Like chevaliers and chiropterans, the Schiff have enhanced speed and strength, and must drink blood to survive. However they are different in two key ways: sunlight will burn them to death, and they form a condition they call "Thorn" that causes them to slowly crystallize. It initially manifests itself as red cracks that usually appear on the neck, spreading along the body until the afflicted Schiff shatters completely.

Plot
Slaves at first, the ten Schiff decided they wanted to be free and escaped from the lab where they were created, killing most of the humans there.

Due to the parting words of one the scientists from the lab, they believed that they were created from Saya's blood, and so her blood would save them from their destined short life spans. They attack Saya and Hagi, but when one of the Schiff, Ghee, drinks Hagi's blood, it kills him almost instantly. They later try again with Saya's blood, but it also causes the Schiff, Irene, who drinks it to die instantly. They realize that the scientist lied and that it is Diva's blood they require to live, not Saya's and devote themselves to hunting Diva down. But they die one by one and the only living Schiff until the end of the anime is Lulu.