Kumi Katayama: A math Instructor at Kokatsu Academy and the homeroom teacher of course 2-C. Currently being arrange by Kei Akashi for utilizing violence in school, she's suspended from her function and has a psychological breakdown. Raidou Remastered is much more of the remake, using a vastly overhauled combat https://www.youtube.com/watch?v=ILKyE5vBc8A