A mysterious creature destroys part of the moon and then warns that, if it is not destroyed before March of the following year, Earth will be next. It also demands to become the homeroom teacher of Class E, a third-year class at Kunugigaoka High School.
Koro Sensei (voice)
Nagisa Shiota
Karuma Akabane
Kaede Kayano
Rio Nakamura
Yukiko Kanzaki
Manami Okuda
Tadaomi Karasuma
Taiga Okajima
Ryunosuke Chiba
Hinata Okano
Yuuma Isogai
Irina Jelavic
Kirara Hazama
Manami Okuda
Megu Kataoka
Ryoma Terasaka
Takuya Muramatsu
Hinano Kurahashi
Taisei Yoshida
Toka Yada
Rinka Hayami
Hiroto Maehara
Masayoshi Kimura
Sosuke Sugaya
Kotaro Takebayashi
Yuzuki Fuwa
Tomohito Sugino
Koki Mimura
Sumire Hara
Ritsu
Itona
Ayaka Saitou
Koki Mimura
Akira Takaoka
Aguri Yukimura
Shiro
Goki Onaga
Kensaku Ono
Takaoka
