In a world where a race called the Ato exists with appearances far different from humans, a young enthusiast of this race welcomes them into his villa as servants. Among them is Mane, an Ato with shining blonde hair and a dark face, who is considered a rarity even within her own species. She captivates both her fellow workers and the master of the house with her enigmatic attitude and demeanor. The story follows the daily life and interactions at the estate as Mane serves alongside other unusual maids, exploring the dynamic between the human master and these mysterious beings from the abyss.