Dorei-san

Dorei is a slave, despite never actually shown to be "owned" by anyone. Her name comes from the word "Dorei(奴隷)", the Japanese term for "slave". She has large amount of physical strength, allowing her to easily carry her ankle weight, due to how hard she works as a maid/"slave".

Appearance
Dorei has black hair, usually in a low ponytail tied with a red band, and is normally depicted having black/brown eyes and a ragged olive-green dress. She wears five shackle cuffs around her neck, wrists, and ankles, with a ball and chain shackled to her left ankle. Uniquely, she's one of the only Nijiura Maids with dark skin.

Personality
She has a very stoic and cold personality, as demonstrated by many images of her depicting her with a blank, emotionless gaze. She's a very hard worker, and is often shown to have superhuman strength, which also serves as an explanation to how she can travel and work with a large ankle weight. She's often seen with Yakui and Shitai, so it can be assumed that they're friends.