Kumi Katayama: A math Trainer at Kokatsu Academy and also the homeroom Instructor of course two-C. Getting build by Kei Akashi for utilizing violence in school, she's suspended from her work and has a mental breakdown. Raidou Remastered is much more of the remake, having a massively overhauled battle https://www.youtube.com/watch?v=ILKyE5vBc8A