The building

Class 3-E (3年E組 San-nen E-gumi) or simply Class E is the lowest class of Kunugigaoka Junior High School. It is nicknamed the "E-as-in-End Class" and consists of students who either failed to keep their grades up (i.e. Yukiko Kanzaki, Nagisa Shiota) or were punished for breaking school regulations (i.e. Yūma Isogai, Karma Akabane). The current year of 28 students were tasked with a mission to assassinate an unknown destructive lifeform who they named as Korosensei.


Class E was made solely for the purpose of fulfilling Chairman Gakuhō Asano's educational value of his variation of the 20:20:60 worker ant ratio in which 95% percent of his students are working, and the remaining 5% are lazy. Class E serves as the 5% and is used as an example for the 95% to continue striving academically (ignoring the fact that Class E comprises 15% of the total student body). Prior to the events of the story, Class 3-E was under the tutelage of Aguri Yukimura[1] who was killed shortly after the destruction of the moon[2].

It was revealed in Chapter 125 that Class E didn't always exist. The class used to be Chairman Asano's cram school that eventually became Kunugigaoka Junior High School after the death of one of his former students. To fit his new education ideals of creating "strong" students instead of "good" ones, he created what is now Class 3-E.

Blatant discrimination from the main body of the school (even the chairman Gakuho Asano himself intervenes occasionally to ensure that the class 3-E 'stays in the bog', sabotaging any effort from Class 3-E to improve itself academically), new and inexperienced teachers, poor and shoddy study environment, and added by the despair of relegated students who lost will to strive makes escape from Class 3-E while still attending the school virtually impossible.

But even with all these injustices Class 3-E is subjected to, people outside of the school (who are unaware of the Academy's segregationist policy) still consider Class 3-E students elite.

Location and Appearance

Class E is located on a mountain that is 1 kilometer away from the main building. Its exterior is that of an old rundown wooden school building with several places on the roof and a few windows boarded up. The interior contains a simple classroom with a blackboard, 28 desks, and a small faculty lounge. The building has no air conditioning and the ceiling has several leaks in it as well due to lack of funds (stemming from discriminatory school policy). Class 3-E is not on the list of School's concern to renovate the building. The building was later revealed to be where Gakuhō Asano originally had a cram school which he first taught at.


Currently, Class E is the location of a government confidential assassination of their homeroom teacher, Korosensei. Because it is secluded away from the main building, the students and teachers are able to carry out their assassination attempts without the people from the main school knowing or noticing. The students work in three major types of groups. Maehara, Kimura, Sugino, Okano, Yada, Kurahashi, and Mimura are proactive assassins who follow the lead of Isogai and Kataoka. Nagisa, Kayano, Chiba, Hayami, Kanzaki, Okajima, Fuwa, and Hara act as support for the main group and do what they can to help out in assassinations. The last group consists of people too individualistic to work in a group so they carry out their own unique plans. This group is comprised of Karma, Nakamura, Okuda, Takebayashi, Sugaya, Terasaka, Yoshida, Muramatsu, and Hazama.

In Chapter 178, after Korosensei is assassinated, Class 3-E is closed down for good as everyone was graduated from Kunugigaoka Junior High School on the day of Graduation. Chairman Asano had also been heavily criticised that his Class E system jeopardize the safety of the students which forced him to resign as Chairman of the Academy. Later in Chapter 179, all of them received rewards of 30 billion yen for completing assassination of Koro-sensei, but later decided to take the minimal amount that was only necessary for them. Instead, they used the remaining money to fufill one of their wishes, which was to purchase Classroom 3-E and the whole mountain it was situated on as a memento.

Seven years later, Class E reunites to repair the classroom. Kayano, who returned to being an actress planned to appoint Nagisa as a Teacher of the repaired Class 3-E building. The Class 3-E building also served as a graveyard of legacy from both Koro-sensei and Aguri Yukimura as an honorable teacher which makes them believe that both are never died in Class E as their teacher where Class E is the place they belong.

The mountain of Class 3-E are now used as base of operations for Hinata Okano to conduct Acrobatic training while Hinano Kurahashi used it as base of operations for Nature Adventure with the children.


By seat number
  1. Karma Akabane
  2. Yūma Isogai
  3. Taiga Okajima
  4. Hinata Okano
  5. Manami Okuda
  6. Megu Kataoka
  7. Kaede Kayano
  8. Yukiko Kanzaki
  9. Masayoshi Kimura
  10. Hinano Kurahashi
  11. Nagisa Shiota
  12. Sōsuke Sugaya
  13. Tomohito Sugino
  14. Kōtarō Takebayashi
  15. Ryūnosuke Chiba
  16. Ryōma Terasaka
  17. Rio Nakamura
  18. Kirara Hazama
  19. Rinka Hayami
  20. Sumire Hara
  21. Yuzuki Fuwa
  22. Hiroto Maehara
  23. Kōki Mimura
  24. Takuya Muramatsu
  25. Tōka Yada
  26. Taisei Yoshida
  27. Ritsu
  28. Itona Horibe





  • The current story features Class 3-E as the last batch of Class 3-E before the closure due to heavy critics. Class 3-E was noted to stand for approximately eight years or two years after Chairman Asano opens Kunugigaoka Academy. (Estimated first batch established ten years ago if all students are started from scratch or Class 1)