Seraph Experiments

Angels (天使,) are used as weapons of the Japanese Imperial Demon Army. After being mentioned at the end of chapter 1, they physically appear in chapter 32. Kureto Hīragi has them prepared for transport during the Nagoya Arc as part of his plan to imprison the vampires in Nagoya.

They are live subjects, who are heavily medicated in order to force them into submission. According to Kureto, they are vital to humanity's survival.

Seraph
Some seraph were experimented on by the Hyakuya Sect prior to the Apocalypse. The term "seraph" refers to a type of angel. Guren Ichinose has been experimenting on them as well. So far, all of those tested are capable of handling Black Demon Series weapons.

By using a certain drug, Guren has managed to unleash the seraph characteristics within Yūichirō Hyakuya for a few minutes. When the drug takes affect, Yū screams and loses his mind as he undergoes a painful transformation. His left eye turns dark and bleeds while a massive wing-like structure sprouts from his upper left shoulder. Although extremely powerful, he goes berserk and attempts to kill any human nearby. He displays no interest in vampires and recognizes no one.

After ingesting three of the standard Japanese Imperial Demon Army supplements in chapter 33, Yū's internal organs rupture, including his heart. However, the power of the angels prevents Yū from dying. Asuramaru advises him that angels can be far nastier than demons. After this event, Yū loses more of his humanity and is implied to become proportionally more seraph in the process.

In the light novels, Mahiru Hīragi brings Guren some documents listing the seraph of the end.

People Known to Possess the Seraph Gene

 * Yūichirō Amane
 * Mikaela Shindō (Vampire)
 * Shihō Kimizuki
 * Mirai Kimizuki (Sick)
 * Yoichi Saotome
 * Tomoe Saotome (Deceased)