Assassination Classroom — Season 1
A class of junior high "misfit" students who are tasked with assassinating their new teacher, an octopus-like creature nicknamed Koro-sensei, who destroyed the moon and threatens to destroy Earth in a year. The students have to learn to balance their assassination attempts with the lessons from Koro-sensei, who is surprisingly an excellent teacher, while the government offers a ¥10 billion reward for his head. Each episode often focuses on individual students, their growth, and their internal conflicts between wanting to kill their teacher and growing to care for him.
Episodes

E01 Assassination Time
★ 7.6Jan 10, 2015 · 24m
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!

E02 Baseball Time
★ 7.8Jan 17, 2015 · 24m
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.

E03 Karma Time
★ 8.1Jan 31, 2015 · 24m
The brilliant, belligerent Karma Akabane, Nagisa's former classmate, joins 3-E and immediately jumps into the assassination mission with both feet.

E04 Grown-Up Time
★ 8.2Feb 7, 2015 · 24m
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?

E05 Assembly Time
★ 7.9Feb 14, 2015 · 24m
Before the torturous school assembly begins, Okuda attempts to poison Koro Sensei in an unexpected way... with unexpected results.

E06 Test Time
★ 8.2Feb 21, 2015 · 24m
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.

E07 School Trip Time, First Period
★ 8.0Feb 28, 2015 · 24m
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.

E08 School Trip Time, Second Period
★ 8.1Mar 7, 2015 · 24m
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.

E09 Transfer Student Time
★ 7.9Mar 14, 2015 · 24m
A new student joins the E Class with a singleminded focus on assassination that drives her classmates to distraction. Koro Sensei to the rescue!

E10 L and R Time
★ 8.2Mar 21, 2015 · 24m
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.

E11 Transfer Student Time, Second Period
★ 8.1Mar 28, 2015 · 24m
Class 3-E prepare for the arrival of their second transfer student, who is allegedly more powerful than Ritsu.

E12 Ball Game Tournament Time
★ 7.8Apr 11, 2015 · 24m
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.

E13 Talent Time
★ 8.4Apr 18, 2015 · 24m
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.

E14 Vision Time
★ 8.0Apr 25, 2015 · 24m
Koro Sensei exposes a major weakness, and Terasaka interrupts a fun summer day out with an assassination attempt that goes a little too far.

E15 End-of-Term Time
★ 7.9May 2, 2015 · 24m
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.

E16 School's Out - First Term
★ 7.8May 9, 2015 · 24m
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.

E17 Island Time
★ 8.0May 16, 2015 · 24m
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.

E18 Action Time
★ 8.3May 23, 2015 · 24m
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?

E19 Pandemonium Time
★ 8.3May 30, 2015 · 24m
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.

E20 Karma Time, Second Period
★ 8.4Jun 6, 2015 · 24m
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.

E21 XX Time
★ 8.5Jun 13, 2015 · 24m
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.

E22 Nagisa Time
★ 8.6Jun 20, 2015 · 24m
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.
