Revolutionary Girl Utena: Mrs. Ohtori

She's Kanae's mother and the wife of Mr. Ohtori, the former chairman of Ohtori Academy. She then poisoned her husband so that Akio could take his place after he died and she even go as far as to show up, tried and reminded Akio that his role as acting chairman depends on her family's connections and his engagement to Kanae. But Akio quickly reminded her that she's having sex with her daughter's future husband while her own husband is sick and died. This is from Episode 30, where Akio removed her heels before making out with her behind the curtains.

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