Koyanskaya of Darkness is summoned as a Servant of Chaldea Security Organization after the events of the Tunguska Special Territory incident. She is one of two fragments that spilled out from Lostbelt: Beast IV's sealed cage: the side of her that mocks the Human Order and is harsh on humanity, being now more wicked than she was when posing as an apostle of the Alien God.
A captivating beauty who cruelly and bewitchingly leads humans around by the nose, following her policies of strict and dominating wildness.
- Existence Outside the Domain (C Rank): Since this version of Beast IV originated from a meteor crashing on Earth, she has the Authority to connect with the sector of the universe that is her origin. This Skill is a side-product of that Authority. It's different in nature from the version the outer space Foreigners have.
- NFF Service (EX Rank): A Koyanskaya-original Skill, part of her plot to become a new Golden White Face. The ability to turn those not allowed to exist (ungodly beings, the ones rejected by Proper Human History) into her reliable workers. The perfect Authority for the next-generation Great Specter. Sounds amazing on paper, but it's just basic Familiar Creation. She can absorb any haired creature into her tails' library, and generate and control them as new Familiars. Koyanskaya planned to become the queen of the Lostbelt-exclusive abominations, just like the Nine-Tailed Fox was the general.
- Nega-Self (C Rank)
- Dominator Fox (A Rank): The Authority to improve domination systems and domesticate all animals (including humans) ... or so she claims with the most apathetic expression. It's actually just a hobby and an instinct of hers. Control through management, basically.
- Slaughter Beast Troupe (A Rank): An alteration on Tamamo Vitch Koyanskaya's Aptitude for Slaughter (Man) Skill. An Aptitude for Slaughter specialized in manipulating animals. She exerts absolute control over any haired beast, regards of Magical Beast, Mythical Beast, or Divine Beast rank, and employs them as perfected weapons. That said, she can't completely force especially powerful Divine Beasts into submission, so this Skill does only the "improving their power" part.
- Goddess Metamorphosis (Beast) (B Rank): The top level of the Shapeshift Skill. She can morph the field into a Shang Hell. In the Shang Hell, men are degraded to beasts, lose their intellect, and suffer more the deeper this loss was. A hellish picture that can be considered a reproduction of King Zhou of Shang being corrupted by the Wine Pool and Meat Forest. A Skill that sorta discloses the past of crimes of Koyanskaya's model Tamamo-no-Mae but sorta doesn't.
Creation and Conception
Arco Wada is the character designer for Foreigner.