Shizuma Hanazono

The current Etoile, Shizuma Hanazono is a highly respected and much beloved person to most of the other students attending the three schools. She looks very mysterious and also seems to have a number of secrets to match this visage. This makes her a difficult person to figure out or to even talk to for someone just meeting her. Most of her secrets—and personal problems—seem to be related to her prior relationship with Kaori Sakuragi. - Wikipedia