Season 1
Episodes
S1 · E1 · 10 Jan 2015 · 24 min
Assassination Time
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!
S1 · E2 · 17 Jan 2015 · 24 min
Baseball Time
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.
S1 · E3 · 31 Jan 2015 · 24 min
Karma Time
The brilliant, belligerent Karma Akabane, Nagisa's former classmate, joins 3-E and immediately jumps into the assassination mission with both feet.
S1 · E4 · 7 Feb 2015 · 24 min
Grown-Up Time
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?
S1 · E5 · 14 Feb 2015 · 24 min
Assembly Time
Before the torturous school assembly begins, Okuda attempts to poison Koro Sensei in an unexpected way... with unexpected results.
S1 · E6 · 21 Feb 2015 · 24 min
Test Time
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.
S1 · E7 · 28 Feb 2015 · 24 min
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.
S1 · E8 · 7 Mar 2015 · 24 min
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.
S1 · E9 · 14 Mar 2015 · 24 min
Transfer Student Time
A new student joins the E Class with a singleminded focus on assassination that drives her classmates to distraction. Koro Sensei to the rescue!
S1 · E10 · 21 Mar 2015 · 24 min
L and R Time
Irina is greeted by her former master, retired assassin Lovro, who thinks she should give up as she has no chance of killing Koro-sensei.
S1 · E11 · 28 Mar 2015 · 24 min
Transfer Student Time, Second Period
Class 3-E prepare for the arrival of their second transfer student, who is allegedly more powerful than Ritsu.
S1 · E12 · 11 Apr 2015 · 24 min
Ball Game Tournament Time
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.
S1 · E13 · 18 Apr 2015 · 24 min
Talent Time
As Karasuma briefly senses what appears to be a fearsome aura coming from Nagisa, Akira Takaoka, an aquaintance of Karasuma from the Ministry of Defense, is sent to Class 3-E to take over Karasuma's role as P.E. teacher.
S1 · E14 · 25 Apr 2015 · 24 min
Vision Time
Koro Sensei exposes a major weakness, and Terasaka interrupts a fun summer day out with an assassination attempt that goes a little too far.
S1 · E15 · 2 May 2015 · 24 min
End-of-Term Time
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.
S1 · E16 · 9 May 2015 · 24 min
School's Out - First Term
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.
S1 · E17 · 16 May 2015 · 24 min
Island Time
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.
S1 · E18 · 23 May 2015 · 24 min
Action Time
The summer assassination attempt is followed by a crisis affecting nearly half the E Class. Can the rest think and move fast enough to save them?
S1 · E19 · 30 May 2015 · 24 min
Pandemonium Time
The E Class must put their lessons into practice as they tackle an intimidating hotel brimming with baddies--and all without Koro Sensei's help.
S1 · E20 · 6 Jun 2015 · 24 min
Karma Time, Second Period
Karma must use his head to get past a formidable foe. Nagisa goes undercover as the E Class continues to sneak its way to the hotel's top floor.
S1 · E21 · 13 Jun 2015 · 24 min
XX Time
The students take on one last assassin opponent before meeting the shadowy figure who's holding the virus remedy hostage in exhange for Koro Sensei.
S1 · E22 · 20 Jun 2015 · 24 min
Nagisa Time
Before Nagisa completely gives into his anger, Terasaka throws a stun-gun at him, urging him not to become a murderer and think about what's truly important.
Data and images from TMDB.