Kumi Katayama: A math Instructor at Kokatsu Academy and the homeroom Instructor of course two-C. Becoming build by Kei Akashi for utilizing violence at school, she is suspended from her get the job done and it has a mental breakdown. Atsushi Takayama: Concentrate on from Yumi Shiina's Synergy stories. https://www.youtube.com/watch?v=ILKyE5vBc8A