Assassination Classroom, also known as 暗殺教室, is Action & Adventure, Animation, Comedy, & Sci-Fi & Fantasy television series that premiered on January 10, 2015 and set to air on Fuji TV. It consists of 2 seasons with 47 episodes.
The students of Class 3-E have a mission: kill their teacher before graduation. He has already destroyed the moon, and has promised to destroy the Earth if he can not be killed within a year. But how can this class of misfits kill a tentacled monster, capable of reaching Mach 20 speed, who may be the best teacher any of them have ever had?