Kyōshi no pōn
A few years ago, a highschool that goes by the name of Shindoshi Highschool, suddenly changed to become one of the most horrifying school's in the world. The cause of this drastic change was the new headmaster himself. The headmaster has proposed a more revamped school system in which it would focus on a more physical way to teach the students how to behave in school. On the day of the change the final few students have just arrived at the school grounds. The students are starting off the new school year with little to no knowledge of what is actually going to happen to them. Soon after the gates of the school shut close, all the parents of the students were informed that theyr children will spend the next 3 years living there.