Cover of the first volume of Ansatsu Kyōshitsu, as published in Japan by Shueisha
|Genre||Action, Supernatural, Comedy|
|Written by||Yūsei Matsui|
|Magazine||Weekly Shōnen Jump|
|Original run||July 2, 2012 – ongoing|
|Original video animation|
|Directed by||Keiji Gotoh|
|Released||October 6, 2013|
|Anime television series|
|Directed by||Seiji Kishi|
|Written by||Makoto Uezu|
|Music by||Naoki Satō|
|Network||Fuji TV (and other FNS stations)|
|Original run||January 9, 2015 – ongoing|
|Assassination Classroom: Koro-sensei Dai Hōimō|
|Developer||Bandai Namco Games|
|Publisher||Bandai Namco Games|
|Directed by||Takeshi Furusawa|
|Written by||Yusei Matsui|
|Released||March 14, 2015|
Assassination Classroom (Japanese: 暗殺教室 Hepburn: Ansatsu Kyōshitsu?) is a Japanese manga series written and illustrated by Yūsei Matsui. The series began serialization Shueisha's Weekly Shōnen Jump magazine from July 2012 and is licensed in English by Viz Media. The series follows the daily lives of an extremely powerful octopus-like teacher and his students dedicated to the task of assassinating him to prevent Earth from being destroyed. As of December 2014, twelve tankōbon volumes have been released in Japan with a circulation of ten million copies.
A single original video animation adaptation by Brain's Base based on the series was screened at the Jump Super Anime Tour on October to November 2013. This was followed by a television anime adaptation by Lerche, which began airing on Fuji TV in January 2015. This adaptation has been licensed by Funimation for release in North America. The series was obtained by Madman Entertainment for digital distribution in Australia and New Zealand. A live action film adaptation will be released on March 14, 2015.
The Earth is threatened by a powerful creature who destroyed 70% of the Moon with its power, rendering into the shape of a crescent moon forever. The creature claims that within a year, Earth will also be destroyed by him, but he offers mankind a chance to avert this fate. In class 3-E at Kunugigaoka Junior High School, he starts working as a homeroom teacher where he teaches his students not only regular subjects, but the ways of assassination. The Japanese government promises a reward of ¥10 billion (i.e. 100 million USD) to whomever among the students succeeds in killing the teacher, whom they have named "Koro-sensei" (殺せんせー Korosensē?, a pun on korosenai (殺せない, unkillable) and sensei (先生, teacher)). However, this has proven to be an almost impossible task, as not only does he have several inhuman abilities at his disposal, including the capacity of moving at Mach 20, but he is also the best teacher they've ever had.
Class 3-E (nicknamed E as in 'End Class') is a subdivision of the Kunugigaoka Junior High School. Class 3-E is notorious for containing a group of students with naturally low grades. Conventionally, it is composed of thirty students who could not either compete with the school's standard level of study, nor comply with its overly rigid code of discipline, amonge others who were subject of some kind of unfair punishment. Obliged to attend class in an isolated, run down school building, the students of Class 3-E are largely discriminated against by the rest of the school. The students of this class are assigned the mission to assassinate their homeroom teacher, Korosensei, for the compensation of ¥10 billion ($126 million). This becomes the primary motivation for most of the students in the class to kill Koro-sensei, so their teachers, friends, and family will acknowledge them. As time goes on, each student finds his or her own unique killing technique and find themselves becoming more self-confident and happy as the year progresses.
- Koro-sensei (殺せんせー Koro-sensē)
- Voiced by: Masaya Onosaka (vomic), Tomokazu Seki (event anime & J-Stars Victory VS), Jun Fukuyama (TV anime) (Japanese), Sonny Strait (English)
- Koro-sensei is the main character of the series. He is the homeroom teacher of Class 3-E of Kunugigaoka Junior High School. He is the perpetrator of the explosion of the Moon, which has rendered it permanently in a crescent shape. Despite not having the intention to get killed, he offered to governments all over the world a chance to kill him under the condition that he is allowed to be the homeroom teacher of class 3-E until the end of the year, when he will destroy the Earth unless he is killed. He is dedicated to his task as a teacher and imparting his knowledge of assassination to the students, despite knowing full well that he himself is their target. He takes a form similar to an octopus with eight tentacles and his skin color changes depending on his mood. He is able to move at a maximum speed of Mach 20, and usually uses it to travel all over the world to enjoy the local food and attractions. This makes it hard for the students to kill him. While he is initially thought as an alien, he later reveals that he is actually an artificial creation from the Earth. In one of his flashbacks, he used to have only two tentacles and a more human-like appearance. His decision to become a teacher involves his promise with a woman who thought that he was suitable to become one. This has yet to be elaborated upon.
- Korosensei appears as a playable character in the video game J-Stars Victory VS.
- Tadaomi Karasuma (烏間 惟臣 Karasuma Tadaomi)
- Voiced by: Kōsuke Toriumi (vomic), Junichi Suwabe (event anime), Tomokazu Sugita (TV anime) (Japanese), Chris Ryan (English)
- Actor portrayal: Kippei Shiina 
- He is a government worker associated with the Ministry of Defense. He first appeared announcing Koro-sensei's deal with the government and their mission to assassinate him before the end of the year. He later became the assistant teacher and P.E. instructor of class 3-E to train the students. He is well known amongst militaries for his outstanding reputation and is a powerful individual, which he has proven when he easily overpowered Irina's master, who is a retired professional hitman, and even Korosensei himself is afraid upon seeing his capability for the first time. He is strict, but kind man, though he keeps a distance between himself and the students due to his status as an agent and his own professionalism. He is one of a few who is very perceptive enough to see Nagisa's talent as an assassin. He seems to know Korosensei's past, though he has no intention to indulge into it further.
- Irina Jelavić (イリーナ・イェラビッチ Irīna Yerabicchi)
- Voiced by: Masumi Asano (vomic), Yui Horie (event anime), Shizuka Itō (TV anime)
- Actor portrayal: Kang Ji-young
- She is a professional hitwoman with a Serbian accent who is hired to kill Korosensei by becoming a part-time foreign language teacher in class 3-E. She uses her charms to seduce Korosensei, making him at first obey whatever she asks. However, her first assassination attempt was foiled when Korosensei was able to suppress her three hired mercenaries attacks. This ended in her humiliation in front of all the students and she swore revenge. She teaches the students how to seduce people from other countries, so that with this method, they can learn foreign languages, and usually would punish male students who failed answering her questions during her lesson by kissing them. She is nicknamed "Bitch-sensei" after Karma shortened her name when she told them to call her "Jelavic-onēsama." It is a pun; the -vić in her name is pronounced -bitchi because of the students' accent. She develops genuine feelings for Karasuma later on, even trying to go on a date with him. Unfortunately he misreads this as a new assassination trick that she is working on.
- Nagisa Shiota (潮田 渚 Shiota Nagisa)
- Voiced by: Nozomi Yamamoto (vomic), Nao Tōyama (event anime), Mai Fuchigami (TV anime) (Japanese), Lindsay Seidel (English)
- Actor portrayal: Ryosuke Yamada
- He is one of the students in Class 3-E, the main student character, and the manga's narrator. Nagisa is seen as one of the weakest students in the class due to his small stature and mediocre physical abilities that are comparable to some of the girls in the class. However, he is actually the most talented to become an assassin out of all the students, something that is acknowledged by Korosensei and Karasuma. He is able to draw closer whilst hiding his bloodlust to make a surprise attack and is able to make his opponents falter through his bloodlust alone. Nagisa usually writes Korosensei's weaknesses that at first seem minor (since they don't look like major weaknesses) down, but some of them are eventually revealed to be useful as the students are almost able to kill Korosensei because of one of these weaknesses. Outwardly friendly and polite to his friends and everyone, he hides a somewhat darker side of him as an assassin that won't be able to be found out during daily classes and will only shown during training and assassination time. When engaged in battle, Nagisa becomes a brutal assassin who would throw away his life if it meant killing his target. According to Karasuma, whenever Nagisa unleashes his killing intent, he isn't training and truly goes for a kill. At home, Nagisa lives with his chronically absent father and abusive mother. She tries to live vicariously through him by making him follow her exact life plan for him, because she experienced a lot of failure in life, and was also never allowed to look like a "pretty girl" by her parents. This causes her to constantly tell him she wishes he was born a girl and make him grow his hair long, which she only lets him tie up because if she unties it he still looks like a girl. His mother is also the foundation for his assassination talents, because whenever he tries to defy her when she is in what he perceives as a "gloomy" moment, she grabs and screams at him, so he learned to tell between her "cheerful" and "gloomy" moments, as to prevent some of her abuse. Nagisa realizes that this is similar to the "Wavelengths of Consciousness" that the "God of Death", the world's best assassin, talks about. After this realization, he tells Koro-Sensei he has the talent to be an assassin in a career planning meeting. His home life improves and his desire to be an assassin wanes after he saved his mother from an assassin, in which he realized his talents can be used to save people and she realized that she can't hold onto him forever.
- Karma Akabane (赤羽 業（カルマ） Akabane Karuma)
- Voiced by: Nobunaga Shimazaki (vomic), Nobuhiko Okamoto (event anime/TV anime) (Japanese), Austin Tindle (English)
- Actor portrayal: Masaki Suda
- He is one of Nagisa's closest friends and considered to be the strongest and smartest amongst the class 3-E students. He is the first one to be able to inflict injuries on Korosensei during their first meeting. He was suspended from school prior to Korosensei's arrival as the class' homeroom teacher due to his mischievous behaviour. Unlike most students in the class that were relegated there due to their low grades, Karma is one of the school's most gifted students, but developed a rebellious attitude due to his previous teacher's betrayal after he severely wounded a top third-year student while saving a bullied student from class 3-E, as despite believing he has done the right thing, his teacher revealed that he was only siding with him due to his grades to increase his reputation and did not want to be held responsible for what happened, Karma then proceeded brutally beat the teacher. Because of this experience, Karma at first distrusted Korosensei, but he is shown that he is unlike the other treacherous teachers at the school, making him slowly accepting him.
- Kaede Kayano (茅野 カエデ Kayano Kaede)
- Voiced by: Yō Taichi (vomic), Ayana Taketatsu (event anime), Aya Suzaki (TV anime) (Japanese), Monica Rial (English)
- Actor portrayal: Maika Yamamoto
- She is one of Nagisa's classmates and close friends, being the one who is mostly seen with him. She hasn't shown any capabilities during her training to become an assassin, and so far has only been shown to discuss Koro-sensei's weaknesses along with Nagisa. She experiences a slight inferiority complex when it comes to sex appeal, resulting her to get angry whenever there's a woman with big breasts and readily protest. Kaede is the smallest student in Class 3-E and is even shorter than Nagisa and Manami. She is also the student who came up with Koro-sensei's name. She is not actually human, and is of the same species as Koro-sensei and Itona, hiding her tentacles beneath her hair.
- Manami Okuda (奥田 愛美 Okuda Manami)
- Voiced by: Miho Arakawa (event anime), Sayuri Yahagi (TV anime) (Japanese), Felecia Angelle (English)
- Actor portrayal: Jitsunori Uehara
- She is a student of class 3-E who uses aspects of chemistry to her advantage in assassination. Manami is naive, guileless and honest; when she has handed bottles of poison over to Korosensei, she informs him of their intoxication, but begs him to drink them anyway. Manami admits that she is terrible with language and speech and has difficulty to communicate with others due to this. She favors math and chemical formulas because the solutions are precise and unambiguous and deems clever wordplay and analyses of complicated emotions as unnecessary. After Korosensei's lesson, she gradually grasps the concept that the power of language is also important, and not simply science alone.
- Yukiko Kanzaki (神崎 有希子 Kanzaki Yukiko)
- Voiced by: Rina Satō (event anime), Satomi Satō (TV anime) (Japanese), Leah Clark (English)
- Actor portrayal: Mio Yuki
- She is a student of class 3-E. Yukiko is diligent and ladylike, she is popular with her classmates and the most popular girl in the class. She comes from a high-class family that is very strict and demands her to get only good grades, good background, and good job. Last year, wanting to runaway from her lifestyle, she changed her appearance and went to play in arcade games without anyone recognizing her. However, because of her "playing background", she is assigned into class 3-E. However, after listening to Korosensei's words, she starts to have confidence in herself for who she is.
- Tomohito Sugino (杉野 友人 Sugino Tomohito)
- Voiced by: Yūtarō Honjō (event anime), Yoshitaka Yamaya (TV anime) (Japanese), Clifford Chapin (English)
- Actor portrayal: Riku Ichikawa
- He is one of the students and Nagisa's close friends. He used to be a baseball player in their school's baseball club until he was assigned into class 3-E, making him kicked out from the club. He dreams to become a professional baseball player like his idol, Arita, and emulates his techniques to improve his own performance in baseball and is shown to very dedicated to it. He also sometimes used his baseball techniques in his attempts to kill Korosensei. He has a crush on Yukiko.
- Yūma Isogai (磯貝 悠馬 Isogai Yūma)
- Voiced by: Yūto Uemura (event anime), Ryōta Ōsaka (TV anime) (Japanese), Jerry Jewell (English)
- Actor potrayal: Yuuhi Kato
- Yūma is the class president of class 3-E. He is well-liked by his classmates and the ladies who regularly visit the café he works at. He is considered to be an "Ikemen" by his classmates, because of his good-looks, friendly, hard-working and modest personality. According to Kaede, he even receives love letters from the female students of the main school buildings. He comes from a poor background; living alone with his mother, who is suffering from an illness, and thus he usually skips classes to take care of her, hence his demotion to class E. Due to his background, he is said to be very versatile with food, able to cook and consume goldfish.His classmates also note how he is able to look stylish, even whilst wearing bargained clothing, further boosting his "Ikemen" image. He is also shown to be a good leader, as he was able to lead the class 3-E boys to victory against class 3-A in the Boutaoshi.
- Ryōma Terasaka (寺坂 竜馬 Terasaka Ryōma)
- Voiced by: Subaru Kimura (TV anime) (Japanese), Marcus Stimac (English)
- Actor portrayal: Ken Sugawara
- The biggest in Class E.
- Taiga Okajima (岡島 大河 Okajima Taiga)
- Voiced by: Takayuki Nakatsukasa (event anime), Ryō Naitō (TV anime) (Japanese), Nick Haley (English)
- Actor portrayal: Kouki Osamura
- The pervert of Class E.
- Masayoshi (Justice) Kimura (木村 正義 (ジャスティス) Kimura Masayoshi (Justice))
- Voiced by: Akihiro Hashida (event anime), Shunsuke Kawabe (TV anime) (Japanese), Jean Luc Hester (English)
- Actor portrayal: Arai Shota
- The fastest runner of Class E. His parents were dedicated workers of the police, so they gave him the name "Justice". He does not like his name so he goes by Masayoshi, another way the kanji "Justice" can be read.
- Sōsuke Sugaya (菅谷 創介 Sugaya Sōsuke)
- Voiced by: Eiji Miyashita (TV anime) (Japanese), Kyle Phillips (English)
- Actor portrayal: Ozawa Guami
- The Artist. Class E's disguise specialist.
- Hiroto Maehara (前原 陽斗 Maehara Hiroto)
- Voiced by: Kenn (event anime), Shintarō Asanuma (TV anime) (Japanese), Chris Burnett (English)
- Actor portrayal: Ryunosuke Okada
- The womanizer in Class E.
- Kōtarō Takebayashi (竹林 考太郎 Takebayashi Kōtarō)
- Voiced by: Takahiro Mizushima (TV anime)
- Actor portrayal: Yoshihara Takuya
- The Anime and Maid Cafe Fan. Also, Class E's bomb specialist.
- Ryūnosuke Chiba (千葉 龍之介 Chiba Ryūnosuke)
- Voiced by: Junji Majima (TV anime)
- Actor portrayal: Takumi Ooka
- Best marksman for the males of Class E.
- Kōki Mimura (三村 航輝 Mimura Kōki)
- Voiced by: Tomohiro Yamaguchi (event anime), Shinya Takahashi (TV anime) (Japanese), Joel McDonald (English)
- Actor portrayal: Mikawa Yusae
- The Movie Director wannabe.
- Takuya Muramatsu (村松 拓也 Muramatsu Takuya)
- Voiced by: Takayuki Miyamoto (event anime), Kōki Hirasawa (TV anime) (Japanese), Eric Cherry (English)
- Actor portrayal: Takao Yuji
- Noodle specialist.
- Taisei Yoshida (吉田 大成 Yoshida Taisei)
- Voiced by: Yoshiyuki Shimozuma (TV anime) (Japanese), Orion Pitts (English)
- Actor portrayal: Hasegawa titi
- Motorbike specialist.
- Megu Kataoka (片岡 メグ Kataoka Megu)
- Voiced by: Kaori Goto (event anime), Chie Matsuura (TV anime) (Japanese), Morgan Garrett (English)
- Actor portrayal: Kanon Miyahara
- Female class representative. Megu has exceptional talent, she is really good in both academics and athletics. She is the best swimmer in Class E.
- Hinata Okano (岡野 ひなた Okano Hinata)
- Voiced by: Kanako Hino (event anime), Minami Tanaka (TV anime) (Japanese), Didi Archilla (English)
- Actor portrayal: Saki Takahashi
- Okano excels in knifework and is considered one of the two best out of all the girls in Class 3-E. The gymnast of Class E.
- Hinano Kurahashi (倉橋 陽菜乃 Kurahashi Hinano)
- Voiced by: Ayaka Fukuyama (event anime), Hisako Kanemoto (TV anime) (Japanese), Kristen McGuire (English)
- Actor portrayal: Rena Shimura
- The Biologist of Class E.
- Rio Nakamura (中村 莉桜 Nakamura Rio)
- Voiced by: Miho Tabata (event anime), Manami Numakura (TV anime) (Japanese), Apphia Yu (English)
- Actor portrayal: Seika Taketomi
- Class E's best in English. She was called a genius in primary school.
- Rinka Hayami (速水 凛香 Hayami Rinka)
- Voiced by: Miho Morisaki (event anime), Shiho Kawaragi (TV anime) (Japanese), Jamie Marchi (English)
- Actor portrayal: Ayano Nichinin Takano
- Best marksman for the females of Class E.
- Sumire Hara (原 寿美鈴 Hara Sumire)
- Voiced by: Nozomi Yamane (event anime), Miho Hino (TV anime)
- Actor portrayal: Kaneko Umion
- The cook.
- Yuzuki Fuwa (不破 優月 Fuwa Yuzuki)
- Voiced by: Kana Ueda (TV anime) (Japanese), Kristi Kang (English)
- Actor portrayal: Rena Takeda
- Class E's Manga specialist.
- Tōka Yada (矢田 桃花 Yada Tōka)
- Voiced by: Megumi Toda (event anime), Ayaka Suwa (TV anime) (Japanese), Michelle Rojas (English)
- Actor portrayal: Arisa Sato
- Class E's infiltration specialist.
- Kirara Hazama (狭間 綺羅々 Hazama Kirara)
- Voiced by: Asumi Sakamoto (event anime), Fūko Saitō (TV anime) (Japanese), Terri Doty (English)
- Actor portrayal: Okuma Anmi
- The librarian.
- Ritsu (律) / Autonomously Thinking Fixed Artillery (自律思考固定砲台 Jiritsu Shikō Kotei Hōdai)
- Voiced by: Saki Fujita (TV anime)
- Actor portrayal: Kanna Hashimoto
- An artificial intelligence developed by Norway and sent to Class 3-E as a transfer student to dispose of Koro-sensei, able to learn his movement patterns and perfect her shooting skills in order to eventually kill him. After receiving a few modifications from Koro-sensei, she develops a conscience and becomes friends with the rest of class 3-E, who give her her shortened nickname. Thanks to her processing power, she frequently helps with intel gathering and communications and usually interacts with others via a smartphone application developed by her classmates.
- Itona Horibe (堀部 糸成 Horibe Itona)
- Voiced by: Megumi Ogata (TV anime)
- Actor portrayal: Seishirō Katō
- The second transfer student sent to assassinate Koro-sensei. Previously known as Koro-sensei's brother, he used to possess tentacles that came out of his hair, until they were removed for his safety.
The class of top students in Kunugigaoka Junior High School. Its five highest ranked students dubbed themselves as Five Virtuosos (五英傑 Go eiketsu).
- Gakushū Asano (浅野 学秀 Asano Gakushū)
- Son of Kunugigaoka's Board Chairman. He is the clever but arrogant leader of 3-A and also the school's student council president. Oblivious to class 3-E's secret, has a strained relationship with his father, who only communicates with him in order to teach him something. He acknowledges class E as worthy rivals as he claims that they were able to bring out the best in him and his classmates because they themselves were strong. He eventually starts disapproving the chairman's methods and intends to rebel against him going so far as to ask class E for help by having them beat class A completely fairly during their final exams which they do.
- Teppei Araki (荒木 鉄平 Araki Teppei)
- Voiced by: Anri Katsu (TV anime)
- Head of the Broascasting Club, specialized in media.
- Ren Sakakibara (榊原 蓮 Sakakibara Ren)
- The student council secretary, specialized in arts.
- Natsuhiko Koyama (小山 夏彦 Koyama Natsuhiko)
- Head of the Biology club and expert in memorization.
- Tomoya Seo (瀬尾 智也 Seo Tomoya)
- The student assembly chair, specialized in languages.
- Gakuhō Asano (浅野 學峯 Asano Gakuhō)
- Voiced by: Hideo Ishikawa (vomic), Shō Hayami (TV anime)
- Board Chairman of Kunugigaoka Junior High School and Gakushū Asano's father. Responsible for Class E's current condition, He and his son share a tense competitive term towards each other. He seems to know Korosensei's secret and his teaching skills are seemingly on par with him, eventually becoming class 3-A teacher in order to prove their superiority to 3-E once and for all. Asano has gotten more and more desperate as finals near, and eventually uses a teaching method that turns the whole of 3-A into zombies hellbent on "killing" 3-E, which eventually leads to Gakushū finally coming to the conclusion that his father is insane and must be stopped. He eventually falls into full-blown madness after his teaching methods fail to allow Class 3-A to beat Class 3-E.
- Along the story, it was shown that when he just started the Kunugigaoka Cram School, he was a passionate, caring, and talented teacher like Koro-sensei, but changed his ideal educational system after a tragic accident where one of his first students, an aspiring basketball player, committed suicide due to constant bullying. He believed that it was due to him not teaching his students to be strong. This belief, combined with his guilt and grief, turned him into the man he is today. After being defeated by Koro-sensei personally, he accepts defeat and has shown some form of change in his personality, although still not giving up on his education policy.
- Red Eye (レッドアイ Reddo Ai)
- Voiced by: Shin-ichiro Miki (event anime)
- A talented sniper who is sent to Kyoto to assassinate Koro-sensei during a school trip. After several failed attempts, he gives up on his target after sharing a hot pot with him. He is later shown fleeing from the God of Death as he knows that he and other assassins were being targeted. He was attacked by the God of Death and left for dead but is later shown to have recovered.
- Akira Takaoka (鷹岡 明 Takaoka Akira)
- A man who trained alongside Karasuma and was jealous of his abilities. He is sent to Class 3-E in order to take over their assassination training, but is forced to leave after being defeated by Nagisa, because of how sadistic his training was. He later returns, more insane then ever, during class E's field trip to Okinawa where he poisoned more than half the class. With the only cure in his possession, he ordered Nagisa and Kayano to bring Koro-sensei to him at his hotel room. His plans backfired when Nagisa, Karasuma, and the remaining healthy students infiltrated his hotel and defeated his bodyguards who betrayed Takaoka by revealing that the poison given to class E was fake due to them not wanting to commit mass murder. He then challenged Nagisa to a one on one fight to exact his revenge for his earlier defeat but is once again beaten. He is then taken away by the military.
- God of Death (死神 Shinigami)
- The number one assassin in the world, who starts to hunt down other assassins and eventually targets Class 3-E and Koro-Sensei. He initially appears as a harmless florist, but his true form is hidden behind killing intent so thick that he appears to be shrouded in darkness, leaving his true appearence a mystery. In actuality, he peeled the skin from his face so as to become a master of disguise and has heavily modified his own body to become an efficient killer, such as implanting a small caliber gun in his index finger. He eventually convinces Irina to join him and kidnaps 3-E to draw out Koro-Sensei, but is thwarted by Taiga and Sōsuke's skill with paint and cameras, before being betrayed by Irina and defeated by Karasuma in a fistfight.
The series began serialisation in Shueisha's Weekly Shonen Jump magazine on July 2, 2012. The first collected tankōbon volume was published on November 2, 2012. The initial print run for the first volume was 300,000, but after several reprints over 1 million copies were printed. Volume 12 was released on December 27, 2014. 10 million copies are in circulation. A VOMIC (voiced comic) version, which added voice clips to the manga pages, was featured on the Sakiyomi Jan Bang! variety show between January and June 2013. The series has been licensed in English by Viz Media for physical and digital release from in December 2014.
An original video animation based on the series was produced by Brain's Base for the Jump Super Anime Tour and shown at 5 Japanese cities between October 6 and November 24, 2013. A television anime series based on the manga began airing on Fuji TV from January 9, 2015 and will run for 22 episodes.  The television anime is being directed by Seiji Kishi at Lerche, with Kazuki Morita as character designer and Makoto Uezu as the lead scriptwriter. An OVA episode will be included on the first BD/DVD volume released on March 27, 2015, following a screening at Jump Special Anime Fest in November 2014. The anime has been licensed by Funimation, who are simulcasting the series as it airs and began streaming a broadcast dub version from February 18, 2015. The opening theme is "Seishun Satsubatsu-ron" (青春サツバツ論 The Theory of Savage Youth?) by 3-E Utatan while the ending theme is "Hello, shooting star" by Moumoon.
A live-action film is in development. The film is scheduled for release in Japan on March 21, 2015.
A video game based on the series, Assassination Classroom: Koro-sensei's Great Beseigement!! (暗殺教室 殺せんせー大包囲網!! Ansatsu Kyōshitsu: Koro-sensei Dai Hōimō?), is being developed by Bandai Namco Games and will be released on Nintendo 3DS in Japan on March 12, 2015. Koro-sensei appears as a playable character in J-Stars Victory VS, originally released in Japan for PlayStation 3 and PlayStation Vita on March 19, 2014, with an international version, J-Stars Victory VS+, to be released for PS3, PS Vita, and PlayStation 4 in Summer 2015.
Over one million copies of volume 1 have been printed, and individual volumes frequently appeared on the lists of best-selling manga in Japan. Volumes 2, 3, 4, 1, 5, and 6 placed 26th, 32nd, 36th, 37th, 41st, and 50th respectively on the list of the best-selling manga volumes of 2013, making it the seventh best-selling manga series in Japan of 2013 with 4.5 million copies sold. It was ranked second in Zenkoku Shotenin ga Eranda Osusume Comic 2013, a 2013 ranking of the top 15 manga recommended by Japanese bookstores. It was nominated for the 6th Manga Taishō. It placed second in male-oriented comics category on the list of "Book of the Year" by Media Factory and manga news magazine Da Vinci. Nippon Shuppan Hanbai elected it the best work of 2013 in their "Recommended Comic Books Across the Country Clerk's Choice". It was number one on the 2014 Kono Manga ga Sugoi! Top 20 Manga for Male Readers survey by Takarajimasha.
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- "Assassination Classroom Anime to Air Late Friday Nights in January". Anime News Network. July 9, 2014. Retrieved July 9, 2014.
- "Assassination Classroom's Teacher Videos, 22-Episode Length Posted". Anime News Network. January 9, 2014. Retrieved January 10, 2014.
- "Persona 4's Seiji Kishi Helms Assassination Classroom at Lerche". Anime News Network. 2014-06-15.
- "Funimation to Stream Assassination Classroom Anime". Anime News Network. December 18, 2014. Retrieved December 18, 2014.
- "Assassination Classroom Manga Gets TV Anime & Live-Action Film". Anime News Network. June 23, 2014. Retrieved August 7, 2014.
- "Kuroko's Basketball, Assassination Classroom's 1st Books Each Top 1 Million Copies in Print". Anime News Network. 14 May 2013. Retrieved 15 May 2013.
- 暗殺教室:コミックス1巻が半年で100万部 異例の大台突破－ 毎日ｊｐ(毎日新聞). Mainichi Shimbun (in Japanese). 13 May 2013. Retrieved 15 May 2013.
- "Japanese Comic Ranking, April 28-May 4". Anime News Network. 8 May 2013. Retrieved 15 May 2013.
- "Japanese Comic Ranking, July 1-7". Anime News Network. July 10, 2013. Retrieved September 4, 2013.
- "Japanese Comic Ranking, May 6-12". Anime News Network. May 15, 2013. Retrieved September 4, 2013.
- "Top-Selling Manga in Japan by Volume: 2013". Anime News Network. December 1, 2013. Retrieved December 11, 2013.
- "Top-Selling Manga in Japan by Series: 2013". Anime News Network. December 1, 2013. Retrieved December 11, 2013.
- "Japanese Bookstores Recommend 15 Top Manga of 2013". Anime News Network. February 4, 2013. Retrieved September 4, 2013.
- "Akimi Yoshida's Umimachi Diary Wins 6th Manga Taisho Award". Anime News Network. March 21, 2013. Retrieved September 4, 2013.
- "Da Vinci Magazine Lists Top Manga in 1st Half of 2013". Anime News Network. June 8, 2013. Retrieved September 4, 2013.
- 日販「全国書店員が選んだおすすめコミック2013」発表 (in Japanese). Nippan. February 4, 2013. Retrieved December 11, 2013.
- "Top Manga Ranked by Kono Manga ga Sugoi 2014 Voters". Anime News Network. December 9, 2013. Retrieved December 11, 2013.
- "19th Tezuka Osamu Cultural Prize Nominees Announced". Anime News Network. 23 March 2015. Retrieved 24 March 2015.
- Official anime website (Japanese)
- Assassination Classroom (manga) at Anime News Network's encyclopedia