ahh i was just reading this the other week !! title is:
Sensei! Bokutachi ga Sekai wo Horoboshimasu.
sounds like Assassination Classroom lol
what the fuck? I read that wrong, I'm sorry, maybe I'm just high
its like. reverse assclass LOL
By the way, since it sounds like everyone enjoys this concept, there's a really good manga (and anime!) called Talentless Nana, about a highschooler that has a mission to fulfill in a secret school, where all the other classmates have op superpowers, without being found out! Just check out the first chapter/episode, to see if you like it, it's brilliant.
isn't that undercover proffessor
i forgot the name of that manga where the top one assassin was assigned to infiltrate an academy, pretend to be a homeroom teacher, and kill all the students in that class because according to the prophecy, they'll become disasters but he managed to erase the students in the picture one by one without having to kill them