The worst episodes of Assassination Classroom
Ranked by viewer rating, lows first. Lit marks on the season rail place this list across the run. Vote on a placement to back it or contest it.
- 01
A creature who blasted the moon into a crescent shows up at Kunugigaoka Junior High School--and he's giving the students a year to assassinate him!
- 02
Itona endears himself to the boys in Class 3-E as he shows off his assassination creation. The students call each other code names for an entire day.
- 03
A baseball tournament is to be held, in which Class 3-E are forced to play an exhibition match against the top players of the school's baseball club, which Sugino used to be a part of.
- 04
After two days of exams, the results are in. Both the ace A Class and the end E Class must come to terms with the outcome--and so must Koro Sensei.
- 05
The reasoning behind the E Class's segregation is revealed. Nagisa tracks Koro Sensei's weak points in the hopes of using them to take him down.
- 06
For finals, Koro Sensei gives his class a new goal--with an irresistible reward. The E Class makes its own deal with the top-tier A Class's Big Five.
- 07
A new student joins the E Class with a singleminded focus on assassination that drives her classmates to distraction. Koro Sensei to the rescue!
- 08
Before the torturous school assembly begins, Okuda attempts to poison Koro Sensei in an unexpected way... with unexpected results.
- 09
School Trip Time, First Period
The students go on a school trip to Kyoto, where they must still keep assassination foremost in their minds. Kanzaki faces trouble from her past.
- 10
Koro Sensei exposes a major weakness, and Terasaka interrupts a fun summer day out with an assassination attempt that goes a little too far.
- 11
The E Class trains intently under a pro killer to prepare for their island assassination. Once there, they must make sure everything falls into place.
- 12
The end-of-term exams come down to one doozy of a final problem. Principal Asano comes to Koro Sensei with a little wager that has a lot riding on it.
- 13
Following the drama festival, the E Class learn that one of their classmates is hiding a big secret connected to Koro Sensei's past!
- 14
Class 3-E has agreed to try and save Koro Sensei. In order to do this, they must track down confidential information -- information that takes the class to another height.
- 15
The brilliant, belligerent Karma Akabane, Nagisa's former classmate, joins 3-E and immediately jumps into the assassination mission with both feet.
- 16
Competition between the elite A Class and downtrodden E Class heats up at the school sports festival, with Isogai's livelihood hanging in the balance.
- 17
Graduation day: one of life's chapters ends and another begins as the students and teachers of Class 3-E go on to forge their own paths in the world.
- 18
School Trip Time, Second Period
The E Class gives a pro sniper plenty of chances to take down Koro Sensei, then try to make the most of what's left of their school trip to Kyoto.
- 19
Transfer Student Time, Second Period
Class 3-E prepare for the arrival of their second transfer student, who is allegedly more powerful than Ritsu.
- 20
A new foreign-language teacher comes to 3-E with some major ulterior motives... among other things. Will she get any closer to killing Koro Sensei?
- 21
Time for midterms! Koro Sensei gives his aspiring assassins an ultimatum as they battle a grueling test and the disdain of the rest of the school.
- 22
Kaede comes up with a delicious plan of attack, Class 3-E plays an intense game of Cops and Robbers, and Koro Sensei is accused of a serious crime.
- 23
Koro Sensei faces off against the powerful, tentacled Itona and his handler Shiro yet again, revealing more of his teaching philosophy along the way.
- 24
Each class at Kunugigaoka Academy is competing for the highest sales totals in the school festival. How can the E Class even hope to stand a chance?
- 25
End-of-Term Time - Second Period
It's exam time again, and the cream-of-the-crop A Class is a bigger threat than ever before. Top-ranking Asano, however, has something up his sleeve.
































