A mysterious creature destroys 70% of the moon. The creature then warns that if he is not destroyed by March of next year, Earth will be next. The creature also demands that he becomes the homeroom teacher for 3rd grade E class at Kunugigaoka Junior High School. The government is powerless to say no. The creature then becomes the homeroom teacher of 3rd grade E class which consists of failed students including Nagisa Shiota. The creature is called Teacher Koro. Meanwhile, the government requests that the students try to kill Teacher Koro even though he possesses super powers. The government offers a 10 billion yen reward for whomever successfully kills him. The students are confused by the situation, but decide to kill Teacher Koro. When their class begins with Teacher Koro, the students finds themselves having a good time with their new teacher.
Kazunari Ninomiya
Koro Sensei (voice)
Ryosuke Yamada
Nagisa Shiota
Masaki Suda
Karuma Akabane
Maika Yamamoto
Kaede Kayano
Haruka
Rio Nakamura
Mio Yuki
Yukiko Kanzaki
Miku Uehara
Manami Okuda
Kippei Shiina
Tadaomi Karasuma
Saki Takahashi
Hinata Okano
Kang Ji-young
Irina Jelavic
Ami Okuma
Kirara Hazama
Kanon Miyahara
Megu Kataoka
Ken Sugawara
Ryoma Terasaka
Yuji Takao
Takuya Muramatsu
Rena Shimura
Hinano Kurahashi
Arisa Sato
Toka Yada
Hinano Tanaka
Rinka Hayami
Rena Takeda
Yuzuki Fuwa
Riku Ichikawa
Tomohito Sugino
Mion Kaneko
Sumire Hara
Kanna Hashimoto
Ritsu
Seishirou Katou
Itona
Wakana Aoi
Ayaka Saitou
Yugo Mikawa
Koki Mimura
Masanobu Takashima
Akira Takaoka
Mirei Kiritani
Aguri Yukimura
Roy Kishima
Shiro
Riku Hagiwara
Arisa Matsunaga
Toka Yada
Takeo Nakahara
Goki Onaga
Ren Miyagawa
Anri Okita
