The students in Class 3-E of Kunugigaoka Junior High have a new teacher: an alien octopus with bizarre powers and unlimited strength, who's just destroyed the moon and is threatening to destroy the earth--unless they can kill him first! Meet the would-be assassins of class 3-E: Sugino, who let his grades slip and got kicked off the baseball team. Karma, who's doing well in his classes but keeps getting suspended for fighting. And Okuda, who lacks...

"English teacher Irina's assassination mentor makes an appearance and the two compete-using special agent Karasuma as their target. Another transfer student/would-be assassin joins the class, accompanied by a guardian who claims to be Koro Sensei's...little brother?! A tentacle showdown ensues, sending everyone into a tentacle tizzy. Then, the 3-E students face humiliation yet again during a school baseball exhibition match. Plus, more secrets of...

"The 3-E students head for the lair of the enemy to stop a deadly biological attack. But blocking their path are three master assassins: Smog, Grip, and Gastro, who excel, respectively, in the use of poison, brute strength, and guns. With their teacher Karasuma down, Karma and his friends face terrible odds. And even if they defeat their foes, how will they wrest the antidote from them? Worse, it turns out the mastermind behind the attack is someone...

Ever caught yourself screaming, "I could just kill that teacher"? What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call...again? How about blowing up the moon and threatening to do the same to Mother Earthunless you take him out first?! Plus a reward of a cool 100 million from the Ministry of Defense!...

"The Grim Reaper sets up a lethal trap that buries Mr. Karasuma and Ms. Vitch alive. Will Mr. Karasuma's repressed feelings surface before he and Ms. Vitch do? And how will Mr. Karasuma face Death? Then, despite his vow to destroy the planet in March, Koro Sensei offers career counseling to his students. Nagisa's professional goal raises some serious issues. And finally, it's time for the next school festival showdown. Class A and Class E compete...

"Ever caught yourself screaming, "I could just kill that teacher"? What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call ... again? How about blowing up the moon and threatening to do the same to Mother Earth--unless you take him out first?! Plus a reward of a cool 100 million from the Ministry of Defense!...

What does a pathetic class of misfits have in their arsenal to combat their schoolteacher's alien technology, bizarre powers and...tentacles?! Ever caught yourself screaming, "I could just kill that teacher"?What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call...again? How about blowing up the moon and...

"Ever caught yourself screaming, "I could just kill that teacher"? What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call...again? How about blowing up the moon and threatening to do the same to Mother Earth--unless you take him out first?! Plus a reward of a cool 100 million from the Ministry of Defense!...

"Intramural relations are at an all-time low: Principal Asano wants to crush Koro Sensei's 3-E baseball team while Koro Sensei wants to avenge Principal Asano's sabotage of 3-E's midterms. Then the government sends in a new Special Forces operative--a ruthless father figure who tests Karasuma's combat coaching skills. You'll never guess which student does him proud! And when Koro Sensei digs a swimming pool to help his students cool off, they discover...