Sayuri Hida

Sayuri fights with her wooden sword using the Hida Kasseiryuu. She is an old friend of Rein. Before she was invited to Miyagami Gakuen, she was referred to as a genius swordsman who inherited the pure blood of Hida. An incident that caused her to leave a senior swordsman permanently injured caused her to feel deep guilt ever since, and she sends him flowers daily. When Sayuri's glasses are taken off, she has a hard time seeing, and ends up muttering "megane, megane..." ("glasses, glasses") without ever being able to locate them. Sayuri is noted as having a particularly ample bust, something that her best friend Rein is often envious of.

(Source: Wikipedia)