|Anime Debut||Season 1, Extra Episode: Live House!|
Despite looking "scary" at first sight, Rui is actually a rather kind person, seen when she comforted Ho-kago Tea Time after their embarrassing accident on stage.
Rui has purple-coloured hair and yellow eyes. Over her right eye, she has a red painting and she also put on purple lipstick. Her left ear is pierced. She wears a spiked neck ring, a dark-grey, tattered shirt that reveals a bit of her stomach and has an image of a spiderweb on it. Underneath her shirt, she wears a second, white one. Her black trousers are fixed with a white belt that has grey rivets on it. She als wears high-heeled shoes. Her right arm is decorated with three red lines on the upper arm and two armlets over her wrist.