Solution Epsilon is a member of the Pleiades, an elite team of battle maids serving under the Great Tomb of Nazarick in the anime series 'Overlord.' She is a slime creature capable of human transformation, often taking the guise of a beautiful woman. Solution is known for her aloof demeanor and unwavering loyalty to her master, Ainz Ooal Gown. As a battle maid, she uses her combat prowess and unique abilities to protect Nazarick, making her a formidable opponent. Her calm and collected nature often conceals her true, more sinister tendencies.