Kusakabe Tsugumi

Third year student at St. Orkis Academy.

Head of the fencing club. She is Suzuna's childhood friend and best friend. She is the vice-president of the student council, and supports Suzuna behind the scenes in both public and private matters. She rarely shows attentive concern for anyone other than Suzuna, and is strict with himself and others. She is very rough with male students and is rumored to be a man-hater, even to the point of promoting a female chauvinistic atmosphere.

Translated from the official site