Koyanskaya of Darkness is a character from the mobile game Fate/Grand Order, which is part of the larger Fate series. She is an alternate version of Tamamo Vitch Koyanskaya, known for her cunning and manipulative nature. Koyanskaya of Darkness serves as an antagonist with a mysterious and complex persona. Her motivations often align with chaos and destruction, making her a formidable opponent. She possesses immense magical power and a deep understanding of the human psyche, using these traits to further her often nefarious goals in the intricate narrative of the game.