Kumi Katayama: A math Trainer at Kokatsu Academy as well as the homeroom Trainer of class 2-C. Staying set up by Kei Akashi for employing violence at college, she is suspended from her perform and it has a psychological breakdown. Atsushi Takayama: Focus on from Yumi Shiina's Synergy stories. https://www.youtube.com/watch?v=ILKyE5vBc8A