Abaddon

Abaddon 「kanji?, lit. ???」 is a manifestation-type demon who is used by Kureto Hīragi and Aoi Sangū to possess and control the seraph Mirai Kimizuki once she fully transforms and uses the fifth trumpet. Many humans and vampires are sacrificed to control it and keep it stable, and even the blood of seraphs and demons is required.

Appearance
Abaddon manifests as a large dark mass with an indistinct form as it spirals up behind Mirai. It appears to produce many dark irregular wing-like structures. A glowing half-ring of light with three large diamond-shaped structures cutting through it floats above and behind Abaddon like a crown. A smaller diamond shape is between each larger one.

In the anime, Abaddon appears as a large red and black demon with huge wings. The form is solid and discrete. He has long limbs and a relatively small head compared to his body size. His mouth is full of teeth.

Personality
Unknown.

History
Unknown.

Story: Vampire Reign
Kureto uses Abaddon to control the fifth trumpet. It possesses Mirai and devours sacrifices of humans and vampires in order to stabilize its form.

(The following has yet to be confirmed by the manga.)

This demon meets its end when defeated and turned into salt by Yu.

Forms and Abilities
(The following is unconfirmed by the manga.)
 * Demon's Thrall: Abaddon has the ability to consume the host will illusions while she sleeps and challenge her for possession of her body. This ability can only be used against the host.
 * Basic Form: Unknown.
 * Miniature Form: Unknown.
 * Destruction Ray: Abaddon is a demon of destruction and can unleash his fury upon the land. In the form of a black jet, Abaddon can attack with this beam of destruction.
 * Manifestation: Abaddon can also manifest horsemen from giant red and black blobs.