Solution Epsilon

Solution Epsilon is a slime who has taken on a human shape, and she serves as one of the Pleiades, the elite group of maids who work directly for the ruling powers of the Great Tomb of Nazarick. Unlike most of her fellow maids, her role leans less toward housework and more toward violence: she works as an assassin and poisoner, able to decide whether to protect or slowly dissolve anything, or anyone, she absorbs into her body.

Solution looks down on humans and treats them mainly as prey, since as a slime she can consume people outright, and she has little interest in hiding this side of her nature. She can also control exactly how fast her own digestion works, giving her fine control over torture or quick disposal depending on what a situation calls for.

She was created by Herohero, one of the few members of the old guild who stayed logged into the game until its final day, which gives her a quiet connection to Nazarick's early history. Among the other guardians and maids, Solution gets along especially well with Shalltear Bloodfallen, since the two of them share a similar taste for cruelty that most of the others find unsettling.