Volume 1
One day, members of the government landed in the failing student class of the famous Kunugigaoka Junior High School. They arrived escorted by an arrogant tentacled creature. It had reason to be arrogant, as it had just reduced 70% of the Moon to dust. Since its next act is the annihilation of Earth, it came to announce its plan to humanity. Humanity's reaction was the most natural: to try to eliminate the creature before it accomplishes its plan... The only drawback is that it moves at hypersonic speed. No elite army or seasoned sniper has managed to hit such a fast target. Running out of solutions, the planet's governments decided to entrust the heavy task of eliminating this threat to Class 3-E. Indeed, for a still mysterious reason, the creature wished to become the teacher of this particular class. The initially bewildered students agree to play along upon hearing the announcement of 100 billion yen in reward. Class 3-E remains composed of makeshift killers. Since then, the students must plot daily to find a way to eliminate their peculiar homeroom teacher before the end of the school year. This strange octopus-like creature has become their target to be taken down! Ingenuity must then be shown to kill a teacher who moves at Mach 20 and regenerates in a few seconds. The worst part is that he is quite a good teacher! He knows how to maintain order in his class: 'Assassination attempts must not disrupt classes.' But be careful, Class 3-E is not the only one! A highly trained Defense Ministry agent disguised as a gym teacher and hitmen acting as substitute teachers are there to coach them and attempt to assassinate Korosensei themselves. A turbulent school year is expected within this killing class!