As of July 2026, Assassination Classroom Season 1 aired in 2015 with 22 episodes — streaming now on Netflix. Full episode guide and where to watch below.
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Assassination Classroom Season 1

2015 22 Episodes Animation · Comedy ⭐ 8/10

Assassination Classroom Season 1 is currently streaming on and , and it delivers exactly the kind of comedy that earns a loyal following. A single, tightly-focused season means there is plenty to get through without ever feeling padded. 1,235 people have weighed in on TMDB, and the verdict leans heavily positive. Jun Fukuyama's performance alone is worth the time investment. Put it on tonight and see for yourself.

Assassination Classroom Season 1 is not trying to be everything to everyone, and that focus is exactly what makes it work. Assassination Classroom Season 1 does what great comedies rarely manage — it is actually funny, consistently, across the whole run. 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. Jun Fukuyama and Mai Fuchigami lead a cast that brings real weight to the material. It was aired in 2015. Assassination Classroom Season 1 earns its laughs from character rather than situation, which is why it does not wear thin the way pure farce tends to. It rarely drops the ball, and when it does, it recovers fast.

Comedy fans looking for a reliably funny watch will find it in Assassination Classroom Season 1. If you have run out of similar titles to watch, this is a strong next pick. Best experienced as a single, sustained watch if your schedule allows. Jun Fukuyama anchors an ensemble with real chemistry. Genuinely funny, consistently, across the whole run.

📡 Where to Watch Assassination Classroom Season 1

🇦🇺 Australia
🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 Assassination Classroom Season 1 — Episode Guide

E1
Assassination Time
2015-01-10
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!
E2
Baseball Time
2015-01-17
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.
E3
Karma Time
2015-01-31
The brilliant, belligerent Karma Akabane, Nagisa's former classmate, joins 3-E and immediately jumps into the assassination mission with both feet.
E4
Grown-Up Time
2015-02-07
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?
E5
Assembly Time
2015-02-14
Before the torturous school assembly begins, Okuda attempts to poison Koro Sensei in an unexpected way... with unexpected results.
E6
Test Time
2015-02-21
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.
E7
School Trip Time, First Period
2015-02-28
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.
E8
School Trip Time, Second Period
2015-03-07
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.
E9
Transfer Student Time
2015-03-14
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
2015-03-21
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
2015-03-28
Class 3-E prepare for the arrival of their second transfer student, who is allegedly more powerful than Ritsu.
E12
Ball Game Tournament Time
2015-04-11
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
2015-04-18
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
2015-04-25
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
2015-05-02
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
2015-05-09
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
2015-05-16
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
2015-05-23
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
2015-05-30
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
2015-06-06
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.

🎭 Cast of Assassination Classroom Season 1

Jun Fukuyama
Jun Fukuyama
Koro-sensei (voice)
Mai Fuchigami
Mai Fuchigami
Nagisa Shiota (voice)
Nobuhiko Okamoto
Nobuhiko Okamoto
Karma Akabane (voice)
Aya Suzaki
Aya Suzaki
Kaede Kayano (voice)
Ayaka Suwa
Ayaka Suwa
Touka yada (voice)
Chie Matsuura
Chie Matsuura
Megu Kataoka (voice)
Eiji Miyashita
Eiji Miyashita
Sousuke Sugaya (voice)
Fuuko Saito
Fuuko Saito
Kirara Hazama (voice)
Hisako Kanemoto
Hisako Kanemoto
Hinano Kurahashi (voice)
Junji Majima
Junji Majima
Ryuunosuke Chiba (voice)

📋 All Seasons of Assassination Classroom

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