She was a classmate of Shūhei Hisagi, as such she was a senpai to Momo Hinamori, Renji Abarai and Izuru Kira. Along with Hisagi and Aoga she helped lead a group of academy students on a training mission to the material world. Before departing for the mission, she instructed the students to gather into groups of three, determined by scraps of paper with various markings on them had been handed out earlier, with the students possessing identical markings forming a group. The mission was to practice konsō.
When Hisagi was about to end the day's training, Kanisawa was killed by a Huge Hollow. Aoga immediately tried to avenge her, but was also killed by the same Hollow.
- The mission Kanisawa lead for the 1st years differed between the manga and the anime. In the anime, the students were practicing killing Hollows using dummy-Hollows.