Ansatsu Kyoushitsu

The students of class 3-E at Kunugigaoka Middle School have a daunting task: they must kill their teacher before graduation. This is no ordinary teacher, though. Known as Koro-sensei, he is a tentacled creature who has already destroyed the moon and threatens to obliterate Earth if he isn't killed within a year. Despite his terrifying abilities, including moving at Mach 20 speed and being nearly invincible, Koro-sensei turns out to be the best teacher the students have ever had, guiding them to excel academically and in their assassination skills.

As the clock ticks down, the misfit students, led by Nagisa Shiota, must figure out how to overcome Koro-sensei's seemingly insurmountable defenses. Along the way, they learn valuable lessons about perseverance, teamwork, and self-confidence. With the fate of the world hanging in the balance, can class 3-E succeed in their mission to save the planet?