The prestigious aristocratic "Rurikawa" family has fallen... Her daughter Tsubaki, a peerless beautiful girl, was picked up by Sir Poiman, a great aristocrat with tremendous power, and started a new life. ...but as his exclusive “maid”. Even in a situation where disobeying is not allowed, Tsubaki behaves stubbornly so as not to lose her noble pride, but her master's perverted "maid education" thoroughly teases her mind and body. In order to become a full-fledged 'maid', 'fallen aristocrat Rurikawa Tsubaki' will fall forever...