Madou Monogatari and Puyopuyo character. Arle Nadja's rival, Rulue is madly in love with Satan but he doesn't return any affection. She will still follow his orders if it involves fighting Arle. She has the Minotaur as her servant, but he acts more like a sap than a bodyguard.
Currently voiced by Kondou Kanako in Japanese and Kira Buckland in English.