About Assassination Classroom
Assassination Classroom (Ansatsu Kyōshitsu) is a manga written and illustrated by Yusei Matsui. It ran in Shueisha's Weekly Shōnen Jump from July 2012 to March 2016 and was collected in 21 volumes, which Viz Media publishes in English, and by October 2023 it had more than 27 million copies in circulation. Lerche adapted it as a TV anime directed by Seiji Kishi, with Makoto Uezu as lead scriptwriter and music by Naoki Satō. The first season, 22 episodes, aired on Fuji TV from January to June 2015, and the second and final season, 25 episodes, from January to June 2016, taking the story to the manga's ending. For its tenth anniversary the anime was rebroadcast from April 2025 with new theme songs, and a new film, Assassination Classroom the Movie: Our Time, opened in Japan in March 2026.
One day 70 percent of the Moon is blown away, leaving it a permanent crescent, and a grinning yellow creature with tentacles claims responsibility. He says he will destroy Earth next March, but makes the world's governments an offer: he will become homeroom teacher of Class 3-E at Kunugigaoka Junior High School. Class 3-E is the school's dumping ground, the class the rest of the school calls the End Class, set apart in an old building on a mountain so that its low grades and bad reputation spur everyone else on. The government hands its students special weapons that are harmless to people but can hurt the creature, and promises ten billion yen to whoever assassinates him. The class names him Koro-sensei, a pun on the Japanese words for unkillable and teacher, and soon discovers that the target who dodges their every attempt at Mach 20 is also the best teacher they have ever had.
The series is a comedy-drama that mixes assassination attempts with ordinary school life: midterms and finals against the elite Class 3-A and its Big Five, a school trip to Kyoto, a summer trip to an island resort in Okinawa, a sports festival and a school festival. Professional assassins come after the bounty, two very unusual transfer students join the class, and a mysterious man in a white cloak called Shiro takes an interest in Koro-sensei's weaknesses. As the year goes on, every student finds something they are good at, and season 2 reveals the secrets behind Koro-sensei, the Moon and the class's previous teacher. Polygon named Assassination Classroom one of the best anime of the 2010s.
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What the Assassination Classroom Quiz Tests
Our Assassination Classroom quiz covers the 47 episodes of Lerche's TV anime, seasons 1 and 2. It uses nothing that appears only in the manga, the films or the Koro-sensei Quest! spin-off. Easy levels cover the basics: who made the series, the Moon, Koro-sensei's speed and his weak spot for water, the school, the reward and the main students and teachers. The middle levels follow the school year in order, from the first transfer students, the Kyoto trip and the island resort to the paintball match and the trip to the space station, with a few questions on the hired assassins and on Koro-sensei's lessons. The hard levels are for people who watched to the end: the tentacle count after the first-term finals, the season 2 reveals about Kaede, Koro-sensei and Shiro, what really happened to the Moon, the last episodes, the class's drama-festival play and the season 2 ending theme.
Key Characters
Koro-sensei is the heart of the series: a grinning, Mach 20 octopus who has promised to destroy the world, yet spends every day making sure each of his students gets better at something, whether that is chemistry, baseball or finding the confidence to speak. Nagisa Shiota, the quiet narrator, keeps notes on his teacher's weak points and turns out to have the greatest natural talent for assassination in the class, while his old friend Karma Akabane is a brilliant troublemaker who wounds Koro-sensei on his first day and becomes the only student whose grades can match the school's best. Kaede Kayano, cheerful and fond of pudding, gives the teacher his name. The adults are Tadaomi Karasuma, the Ministry of Defense agent who runs the class's training with a straight face and a strong sense of duty, and Irina Jelavić, a professional assassin hired to teach foreign languages who slowly becomes a real teacher. The class also takes in two transfer students, the artificial intelligence Ritsu and the tentacled Itona Horibe. Facing them are the school's chairman Gakuho Asano, who built the system that keeps Class 3-E at the bottom, his son Gakushu, leader of Class 3-A's Big Five, and the outside enemies who see the class only as a way to get at its teacher.
Available Quizzes
Assassination Classroom Trivia
50 hand-crafted questions across 5 categories. 10 levels of increasing difficulty.
Which Assassination Classroom Character Are You?
Answer 10 questions to discover which Assassination Classroom character matches your personality!
Random Mix
Questions from all 75 anime including Assassination Classroom. The ultimate challenge.
Characters
Koro-sensei
Nagisa Shiota
Karma Akabane
Kaede Kayano
Tadaomi Karasuma
Assassination Classroom Fun Facts
- Every episode's Japanese title is built on the word jikan, "time", from the first, "Ansatsu no Jikan" ("Assassination Time"), to the last, "Mirai no Jikan" ("Future Time"). The films kept the pattern: 365 Days' Time in 2016 and Our Time in 2026.
- All four opening themes are sung by 3-E Utatan, a group made up of the voice actors of five Class 3-E students: Nagisa, Kaede, Karma, Yuma Isogai and Hiroto Maehara. For the Kyoto school-trip episodes, season 1's seventh and eighth, the first opening was sung instead by the voices of the trip group: Nagisa, Kaede, Karma, Yukiko Kanzaki, Manami Okuda and Tomohito Sugino.
- For the tenth-anniversary rebroadcast from April 2025, the anime got brand-new theme songs. The first new opening, by Sora Tomonari, is called "Kiiro Shingo", which means "yellow light", and Tomonari also sang "Teacher", the theme of the 2026 film.
- Two live-action films were made, in 2015 and 2016. Ryosuke Yamada of Hey! Say! JUMP plays Nagisa, and Koro-sensei is voiced by Kazunari Ninomiya of Arashi.
- For the anime's tenth anniversary, the official site announced a one-day "class reunion" event, "Dōsōkai no Jikan", for 17 October 2026 in Koshigaya, Saitama, with Jun Fukuyama (Koro-sensei), Tomokazu Sugita (Karasuma) and Mai Fuchigami (Nagisa) among the cast on stage.
Assassination Classroom Quiz — Frequently Asked Questions
How many episodes of Assassination Classroom are there?
Forty-seven, in two seasons: 22 episodes in season 1 (January to June 2015) and 25 in season 2 (January to June 2016). Two short extras are not counted in that total: an event OVA made by Brain's Base in 2013 and "Meeting Time", a special numbered episode 0 that came with the first Blu-ray and DVD volume in 2015.
Is Assassination Classroom finished?
Yes. Season 2 is the final season, and the anime follows the manga all the way to its ending; the manga itself finished in March 2016 after 21 volumes. Later releases add to the story rather than continue it: a recap film, 365 Days' Time, in 2016, and a new film for the tenth anniversary, Our Time, in March 2026, built from stories the TV anime did not have time to include.
What order should I watch Assassination Classroom in?
Watch season 1 and then season 2; that is the whole story. After that, the extras are optional. 365 Days' Time (2016) looks back on the year through Nagisa and Karma as adults, so it is best saved for the end. Our Time (2026) is set in the final days before the deadline and brings in stories the TV series left out, so it also works best after season 2. Koro-sensei Quest!, a comedy spin-off that moves the class into a fantasy world, got a film in 2016 and 12 short episodes in 2016–2017 and can be watched at any time. The OVA "Meeting Time" is a short side story about how Koro-sensei and Karasuma first met.
Where can I watch Assassination Classroom?
Funimation originally licensed the anime in North America, simulcast it and made the English dub, and the series later moved to Crunchyroll, which now holds it in North America, the United Kingdom and Australia; Muse Communication holds it in South and Southeast Asia. Adult Swim's Toonami block aired the English dub in the United States from August 2020. The 2026 film Our Time began streaming on Crunchyroll in July 2026, and on Prime Video in Japan in August 2026. Availability differs by country and changes over time, so check your local services.
What is Assassination Classroom about?
A creature who has blown away most of the Moon says he will destroy Earth within a year, and in the meantime becomes homeroom teacher of Class 3-E, the class of misfits at an elite junior high school. The government arms the students with weapons that are harmless to people and offers them ten billion yen to assassinate their new teacher, Koro-sensei, before graduation. The catch is that he is also the best teacher they have ever had. It is a comedy-drama about a class that grows up by trying to defeat its teacher, and about what it learns from him along the way.
