Sifr is an energetic girl and the main character in Mai-Otome 0~S.ifr~. She is the future queen of Wind Bloom, and also Nina Wáng's (Mai-Otome) biological mother. Her mother, Elena, died when she was young. She is 14 in Mai-Otome 0~S.ifr~ and is heading for high school in Aries. She is captured on her train ride to her school by Kiddo, who is working for John Smith and the Schwartz Organization, who are targeting her for a unknown reason. She is saved by Bruce and Lena, and two other Meister Otome, Elliot, and Raquel. Rena continues to look after her and protect her. She dreams of becoming an Otome someday, but failed Garderobe's entrance exam.