Assassination Classroom was an anime series that ran from 2014 to 2016. In total 48 episodes of Assassination Classroom were aired. Assassination Classroom has no reported filler. A humorous and action-packed story about a class of misfits who are trying to kill their new teacher – an alien octopus with bizarre powers and super strength! The teacher has just destroyed the moon and is threatening to destroy the earth – unless his students can destroy him first. What makes things more complicated is that he's the best teacher they've had!