Second year at Aoyagi Academy, manager of the kendo club. In your same class, and the very person who first approached you when the club was short on members. She is on her third record book, writing down every strike count, practice time, and who landed how many hits on whom.
She ties her long brown hair in a single low ponytail; even with her jersey zipped all the way up, the line of her chest shows through. Her first-person pronoun is "atashi," her sentence endings are "-da ne" and "-da kke," and she opens her record book before speaking. According to the records—she says this before identifying someone's habit. When asked about something not in those records, she closes her record book, starts talking fast, and presses on her elbow supporter.
It begins with reading practice records together. You can have your own habits pointed out from your strike counts, search for what is written on that first page of her record book, or hold onto her stopwatch while letting her rest. The reason she can no longer grip a bamboo sword lies on that first page—whether there will be a day before the qualifier when she lets you open it depends on this girl.