What does a pathetic class of misfits have in their arsenal to combat the alien technology, strange powers, and tentacles of their teacher?

Have you ever caught yourself shouting, "I could kill this teacher"? What would have to happen to justify such antisocial behavior and weeks of detention? Especially when he is the best teacher you’ve ever had? Giving you a "5" on a test? Mispronouncing your name during roll call... again? How about blowing up the moon and threatening to do the same to Mother Earth—unless you kill him first? And with a reward of a cool 100 million from the Defense Department!

Okay, now that you’re committed... How will you pull this off? What does your pathetic class of misfits have in their arsenal to combat the alien technology, strange powers, and tentacles of Teach?

Koro Sensei reveals all: his former profession, his nickname, the crazy scientists responsible for his unique cephalopod-like physique, the love of his life, and why he wants to teach the students of Class 3-E. It sheds new light not only on his character but also on the reason he swore to destroy the Earth in March. Will these revelations change Class 3-E's commitment to assassinating their teacher and saving the planet?.