Kyoto-sensei (Head Teacher)
Sawatari is the head teacher of Shirokin Academy, and he is also the school's vice principal.
Unlike his anime counterpart, he's rarely shown much. But he's not interested in getting the school shut down. He just honestly has often little faith in the students, due to their wild behavior.
Contrary to his original personality, Sawatari in the anime is very much set on having Shirokin Academy being shut down. He is much like a school traitor and talks down about his students, and he does not look for any good in the students. In the anime, Sawatari is only looking out for his own personal benefits and most often works with Shirokawa Ganichiro to get the academy shut down.