Kumi Katayama: A math Instructor at Kokatsu Academy as well as homeroom teacher of class two-C. Becoming build by Kei Akashi for using violence in school, she's suspended from her work and has a mental breakdown. Atsushi Takayama: Concentrate on from Yumi Shiina's Synergy stories. A person who as https://www.youtube.com/watch?v=ILKyE5vBc8A