Coriana Andrealphus

Coriana Andrealphus is Sairaorg's Bishop from the House of Andrealphus, one of the extinct families from the 72 Pillars, which held the rank of Marquis.

Appearance
She is a young woman with long, wavy blonde hair and wears a business suit.

History
Not much is known about Coriana, other than at some point before the series she joined Sairaorg's peerage. However, she was likely shunned by the other Devils given her mixed heritage, being a descendant of an extinct household from the 72 Pillars.

The Heroic Oppai Dragon
She fought against Issei in Volume 10 during the Rating Game between their masters. She manages to counter both Issei's Bilingual and Dress Break by stripping during the match. Coriana, however, made a mistake by trying to strip her underwear first, which doesn't suit Issei's preference (in a strip tease, according to him, the bra goes off first), and is blasted by the latter's Dragon Shot.

Powers & Abilities
Magic Talent: As a Bishop, Coriana possesses enhanced magical abilities and excels in all categories of demonic powers.

Demonic Powers: She also released spear-like projectiles created from ice using her demonic powers during her battle against Issei.

Trivia

 * In demononolgy, Andrealphus is a Marquis of Hell who commands 30 legions of demons. He has the ability to turn men into birds and the ability to make men subtle in all things pertaining to mensuration.