Season 1
Episode: S01 Special | Airdate: Oct 6, 2013 (30 min)
The story of the original manga begins after 70% of the moon was suddenly vaporized in an explosion. The super lifeform responsible for this catastrophe is a strange tentacled creature that can slink around at supersonic Mach 20 speeds. It has a 10 billion yen (US$100 million) price on its head, but for some reason, this creature ends up teaching a middle school class at the beginning of the school year. The students have until graduation to assassinate the teacher, or it will destroy Earth as well.
Episode: S01 Special | Airdate: Nov 9, 2014 (10 min)
Koro-sensei reminisces about his first meeting with Karasuma, where they first butted heads and fought against each other, ultimately coming to respect one another. However, Karasuma eventually points out their actual meeting wasn't nearly as eventful.
Episode: 1x01 | Airdate: Jan 10, 2015
A creature who blasted the moon into a crescent shows up at Kunugigaoka Junior High School and gives the students a year to assassinate him.
Episode: 1x02 | Airdate: Jan 17, 2015
The reasoning behind the E Class's segregation is revealed. Nagisa tracks Koro Senei's weak points in the hopes of using them to take him down.
Episode: 1x03 | Airdate: Jan 31, 2015
The brilliant, belligerent Karma Akabane, Nagisa's former classmate, joins 3-E and immediately jumps into the assassination mission with both feet.
Episode: 1x04 | Airdate: Feb 7, 2015
A new foreign-language teacher comes to 3-E with some major ulterior motives.
Episode: 1x05 | Airdate: Feb 14, 2015
Before the torturous school assembly begins, Okuda attempts to poison Kpro Sensei in an unexpected way. With unexpected results.
Episode: 1x06 | Airdate: Feb 21, 2015
Koro Sensei gives his aspiring assassins an ultimatum as they battle a grueling test and disdain from the rest of the school.
Episode: 1x07 | Airdate: Feb 28, 2015
The students go on a school trip to Kyoto where they must still keep assassination on their mind.
Episode: 1x08 | Airdate: Mar 7, 2015
Kayano and Kanzaki are kidnapped by students from a rival school. The school is busy preparing for their long-awaited trip to Kyoto when it occurs.
Episode: 1x09 | Airdate: Mar 14, 2015
A new student joins the E Class with a single minded focus on assassination that drives her fellow classmates to distraction.
Episode: 1x10 | Airdate: Mar 21, 2015
Professor Jelavich is forced to prove her assassin skills when her mentor pays a visit to the school. Koro Senei takes Nagisa and Karma on a trip they will never forget.
Episode: 1x11 | Airdate: Mar 28, 2015
A new assassin student with a goal to kill korosensei joins Class E.
Episode: 1x12 | Airdate: Apr 11, 2015
The E Class boys must play the Baseball Club in an exhibition game meant to humiliate them.
Episode: 1x13 | Airdate: Apr 18, 2015
Mr. Takaoka upsets others with his unconventional training methods when he comes to help Mr. Karasuma; Nagisa shows a hidden talent.
Episode: 1x14 | Airdate: Apr 25, 2015
Koro Sensei exposes a major weakness while Terasaka interrupts a fun summer day with an assassination attempt that goes just a bit too far.
Episode: 1x15 | Airdate: May 2, 2015
Final time arrives and Koro Sensei gives his class a new goal. He offers the class a tempting reward and the E Class makes a deal with the A Class's top tier Big Five.
Episode: 1x16 | Airdate: May 9, 2015
The results are in after two days of exams. Both the ace A Class and the end E Class has to come to terms with the outcome as well as Koro Sensei.
Episode: 1x17 | Airdate: May 16, 2015
The E Class trains intensely with a professional killer in order to prepare for their island assassination. Once they arrive at the island they must make sure everything falls in place.
Episode: 1x18 | Airdate: May 23, 2015
The summer training assassination attempt is followed by a unexpected crisis that affects almost half of the E Class students.
Episode: 1x19 | Airdate: May 30, 2015
The E Class students have to put the lessons they have learned into practical use when the unexpected crisis forces them to deal with a hotel full of bad guys without Koro Sensei's help.
Episode: 1x20 | Airdate: Jun 6, 2015
The group of students from E Class head upwards in the hotel facing more assassins as they go.
Episode: 1x21 | Airdate: Jun 13, 2015
The students meet the shadowy figure orchestrating their fellow students sickness after facing one last assassin. The mastermind wants Koro Sensei in exchange for the virus remedy.
Episode: 1x22 | Airdate: Jun 20, 2015
The students of E Class arrive to a showdown on the roof as Nagisa battles for his fellow classmates lives.
Season 2
Episode: 2x01 | Airdate: Jan 8, 2016
Episode: 2x02 | Airdate: Jan 15, 2016
Episode: 2x03 | Airdate: Jan 22, 2016
Episode: 2x04 | Airdate: Jan 29, 2016
Episode: 2x05 | Airdate: Feb 5, 2016
Episode: 2x06 | Airdate: Feb 12, 2016
E Class starts studying differently off the campus after an accident; The students start to worry about their midterm exams.
Episode: 2x07 | Airdate: Feb 19, 2016
E Class must face off against a powerful foe alone after a fall out with a professor.
Episode: 2x08 | Airdate: Feb 26, 2016
Koro Sensei and Mr. Karasuma find the Reaper's hideout and no one knows who will come out on top.
Episode: 2x09 | Airdate: Mar 4, 2016
Nagisa tries to accept his talent; students consider possible future career paths.
Episode: 2x10 | Airdate: Mar 11, 2016
E class competes with the rest of the school for the highest sales totals at the school's festival.
Episode: 2x11 | Airdate: Mar 17, 2016
At exam time, a class is once again a huge threat; Asano has a trick up his sleeve.
Episode: 2x12 | Airdate: Mar 24, 2016
Asano makes a big wager with Koro Sensei; The exams end with a very difficult final problem.
Episode: 2x13 | Airdate: Mar 31, 2016
E Class puts on a play with twists at the drama festival; Asano remembers his first education job.
Episode: 2x14 | Airdate: Apr 7, 2016
E Class cleans up after the festival; a classmate has a secret connecting to Koro Senei's past.
Episode: 2x15 | Airdate: Apr 21, 2016
Episode: 2x16 | Airdate: Apr 28, 2016
E Class is stunned after learning about Koro Sensei's past; they become unsure of their plans.
Episode: 2x17 | Airdate: May 5, 2016
With the class split over whether to kill Koro Sensei or save him, Koro Sensei makes a suggestion.
Episode: 2x18 | Airdate: May 12, 2016
Koro Senseu's fate comes to a battle between old friends; a new obstacle throws a wrench into the plans.
Episode: 2x19 | Airdate: May 19, 2016
Class 3-E goes to lengths to track down information that might help them keep Koro Sensei alive.
Episode: 2x20 | Airdate: May 26, 2016
With high-school entrance exams looming, Nagisa is unsure which path his future should take.
Episode: 2x21 | Airdate: Jun 2, 2016
Koro has one more project planned for his E Class, but the government's plans get in the way.
Episode: 2x22 | Airdate: Jun 9, 2016
The students fight to see their teacher one last time; a figure from Koro Sensei's past arrives.
Episode: 2x23 | Airdate: Jun 16, 2016
A pitched battle between two super creatures threatens to harm the students of Class 3-E.
Episode: 2x24 | Airdate: Jun 23, 2016
E Class students must decide whether to kill the teacher who changed their lives over the past year.
Episode: 2x25 | Airdate: Jun 30, 2016
Graduation Day: The students and teachers of Class 3-E go on to forge their own paths in the world.
Episode: S02 Special | Airdate: Nov 19, 2016 (92 min)
A compilation film of the Ansatsu Kyoushitsu TV series, featuring anime-only epilogue scenes not originally in the manga.
Specials
Episode: S02 Special | Airdate: Mar 11, 2016 (5 min)
Episode: S02 Special | Airdate: Mar 18, 2016 (6 min)
Episode: S02 Special | Airdate: Mar 25, 2016 (5 min)
Episode: S02 Special | Airdate: Apr 1, 2016 (7 min)
Episode: S02 Special | Airdate: Apr 29, 2016 (6 min)
Episode: S02 Special | Airdate: May 6, 2016 (5 min)
Episode: S02 Special | Airdate: May 13, 2016 (5 min)
Episode: S02 Special | Airdate: May 20, 2016 (6 min)
Episode: S02 Special | Airdate: Nov 19, 2016 (9 min)