Kumi Katayama: A math Instructor at Kokatsu Academy and the homeroom Trainer of course 2-C. Currently being set up by Kei Akashi for making use of violence at college, she is suspended from her perform and it has a mental breakdown. Atsushi Takayama: Goal from Yumi Shiina's Synergy tales. https://www.youtube.com/watch?v=ILKyE5vBc8A