Kunugigaoka Junior High School hides a dark secret on its mountain campus: Class 3-E, the home of the academic dropouts and misfits. Their hopeless school life takes a bizarre turn when a powerful, tentacled creature destroys most of the moon and promises to do the same to Earth within a year. Oddly enough, this invulnerable monster strikes a deal with the government to become the homeroom teacher of Class 3-E. The students are handed a monumental task along with specialized weapons: assassinate their new teacher before graduation to claim a reward of ten billion yen and save the planet.

What follows is an extraordinary academic year where traditional subjects like mathematics and English are taught alongside martial arts, sniping, and poison-making. The yellow, supersonic teacher, whom the students name Koro-sensei, surprisingly turns out to be the most nurturing, attentive educator they have ever encountered. He helps them raise their grades and rebuild their shattered self-esteem even as they launch daily lethal attacks against him. The young outcasts must navigate a complex emotional battlefield, learning to sharpen their killer instincts while growing deeply attached to the target they are destined to eliminate.

Key Characters

Koro-sensei: The bizarre, yellow, tentacled homeroom teacher of Class 3-E. Able to fly at Mach 20 and evade almost any conventional attack, he is a formidable force with a surprisingly soft heart. He is entirely dedicated to the education, safety, and personal growth of his students, often tailoring his lessons to unlock each student's unique potential.

Nagisa Shiota: A quiet, diminutive student who initially seems like the least threatening member of the class. He acts as the chronicler of the classroom, constantly taking notes on Koro-sensei's minor weaknesses. Despite his gentle demeanor, Nagisa possesses a natural, terrifying talent for stealth and assassination that shocks both his classmates and professional killers.

Karma Akabane: The brilliant rebel of Class 3-E who was suspended for violent behavior. Highly intelligent, physically capable, and harboring a streak of sadism, Karma is the first student to successfully catch Koro-sensei off guard and inflict damage. His sharp tactical mind and competitive rivalry with Nagisa push the class to constantly innovate their assassination strategies.

Frequently Asked Questions

What does Koro-sensei mean and why does he want to teach Class 3-E?
The name Koro-sensei is a clever pun coined by Kaede Kayano, combining the Japanese word korosenai, meaning unkillable, with sensei, meaning teacher. His insistence on teaching Class 3-E is rooted in a solemn promise made to the class's former teacher before her passing, as he wished to fulfill her dream of guiding these neglected pupils toward a brighter future.

Is the Assassination Classroom manga fully completed?
Yes, the original manga series written and illustrated by Yusei Matsui is complete. The story spans 180 chapters and has been fully collected in 21 volumes. The English translation covers the entire narrative, bringing readers from the chaotic first day of school to the emotional graduation ceremony and its aftermath.

Why is Class 3-E treated so poorly by the rest of the school?
The school principal deliberately maintains a strict system of discrimination. By isolating the lowest-performing students in the dilapidated mountain building of Class 3-E and subjecting them to ridicule, he creates a powerful incentive for the rest of the student body to maintain high grades out of pure fear of being demoted to the End Class.

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