Assassination Classroom 2 episode 12
I suppose this was a good episode? Class E managed to prove their worth, thereby destroying everything that insane principle had hoped to build. The problem with characters like that is that they don’t stop as long as they still have at least one option.
The principle had to face his most prominent class, including his son, as they told him that Class E turned out to be better than them in general. So they wanted to be like them and they even suggested to join Class E, which was the final drop that made the bucket run over. He was insane to begin with, no doubt, but he actually managed to take it one step further.
He decided to demolish Class E’s school building and basically send the students to some kind of prison-like institution. The only way they can escape this fate is if their beloved Koro-sensei, whom they have tried to kill countless of times themselves, manages to survive that insane principle’s challenge. A remarkable improvement if you compare it to some of the previous episodes.