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)
Maachi Hisakawa is the Gokujou Seitokai's accommodation "Landlord" and overseer. Being only in the fifth grade, she does not attend Miyagami Academy classes. She is only of 11 years of age. Her duties at the Miyagami Academy are to cook, clean, and do such things a landlord would do. Maachi Hisakawa is proud of what she does, as it's fun and enjoyable to do what she does. In the show, she is almost always seen with a smile on her face and says little more than her trademark giggle, "tee-heh." Being that way, she is liked and cared for by the rest of the council. (Source: Wikipedia)
Kaori fights bare-handed and is a classmate of Rino and Ayumu. There are many strong hints that she is a lesbian as she has a crush on Kanade and resents Rino because of her close relationship with her. She has two brothers and one sister, which is why she does not live in the Gokujou dorms like the other members of the student council. She has been seen out on the streets early in the morning walking to the school, while the rest of them are already in the dining room eating breakfast, indicating that she doesn't live in the dorm rooms with the rest of the Best Student Council. This is only clearly made known to the rest when a series of events cause them to stumble upon her house and see Kaori's siblings. (Source: Wikipedia)
He is the playboy that was going out with Mayura.
The student council president from a rival school to Miyagami Academy.
Rein uses playing cards as her weapon and is a childhood friend of Sayuri. The Hida family took her in after her father disappeared. She enjoys playing card games and does not mind gambling, due to her familiarity with handling cards. Rein also has a love of words, and many times, she is heard speaking a sentence using one word and splitting it three ways though they all mean the same thing, such as when she called Sayuri "an idiot, a moron, and a complete dingdong." Rein has an extremely maternal side that is shown when an abandoned baby turns up at the Gokujou Seitokais dormitory. This is said to be due to the fact that her father abandoned her when she was very young, making her understand well how it feels to not be loved by anyone. Sometimes Pucchan often refers her as "little-kid-senpai" due to her childish acts and nature. Rein also cheats quite a lot because she doesnt want to lose (consecutive losses means separation). Though she has expressed a dislike for her father, claiming to want to hit him if her ever shows up again, she actually still loves him deep in her heart. Rein finally sees her father during episode 25. (Source: Wikipedia)