TV (Tamamo Vitch) Koyanskaya (TV(タマモヴィッチ)・コヤンスカヤ, TV (Tamamo Vicchi) Koyansukaya), Class Name Beast IV: L (ビーストⅣ：Ｌ, Bīsuto Fō: Eru), full name Beast IV: Lost (ビーストⅣ：ロスト, Bīsuto Fō: Rosuto), is a Beast-class Servant working alongside Beast VII in the Grand Orders of Fate/Grand Order.

Koyanskaya lacks a real True Name, as she is the Tunguska event given form - a convergence and incarnation of the thoughts of animals persecuted by mankind, though the actual Tunguska event had no human causation. She chose to manifest in the Saint Graph of Tamamo-no-Mae due to their shared attribute of being a "beast that is supposed to live for revenge against humans." She likens herself to "the Tamamo-no-Mae from another world," considering Tamamo to be her original.

Superficially similar to Tamamo on the exterior.

While she shares a name with Tamamo Vitch, they are unrelated.

Appearance

Koyanskaya appears to be a voluptuous young woman with long pink hair, although it varies with the suit you are wearing. and gold eyesKoyanskaya changes her clothes every time she appears in a new Lostbelt, Having a Snow Coat, a Chinese Dress, an elegant Middle Eastern suit and a Gala suit.

Beast VI: L

In the absence of the Beast of Comparison, and having grown six tails, Tamamo Vitch Koyanskaya finally takes the place of the fourth Beast as the Lostbelt: Beast IV (ロストベルト：ビーストⅣ)

In this form, Koyanskaya finally carries huge horns in her head, an elongated Chimera-shaped body with features of various animals on its legs, covered in white or grayish Fur with a voluptuous shape, with a female-like back, shoulders, and face. characteristic of the Beast-class.