The P.E. teacher at Ashford Private Academy. Also an adviser to the swim team. But she is actually a soldier of the Britannian Forces. She is one of the few who knows that Lelouch is Zero and about the existence of Geass, and was therefore appointed as an information agent to watch over Lelouch. She still has feelings for Kaname Ohgi, with whom she was involved before the Black Rebellion.
She complains about her job as a teacher, but seems to enjoy aspects of it as well.