"Everyone in class, slaughtered."
Seiji Hasumi is a popular English teacher in a private high school. He is also a violent and sociopathic killer who concocts an extreme plan to deal with the rise of bullying and bad behavior among the student body.
Seiji Hasumi

Reika Katagiri

Keisuke Hayami

Masahiko Maejima

Yuichiro Nagoshi

Miya Yasuhara

Masahiro Tadenuma
Tetsuro Shibahara

Masanobu Tsurii

Takeki Kume

Naoki Isada

Tsubasa Matsui

Tooru Arima

Ryota Sasaki

Misaki Abe

Risako Serizawa

Ai Hoshida

Yuuki Tsukahara

Rina Kiyota

Rina Kiyota's father

Ayumi Nagai

Satomi Shirai

Kengo Watarai

Nakamura

Unknown Role

Stock Trader
Hajime Wakimura
Unknown Role

Unknown Role
Unknown Role
Unknown Role
Suzanna
Unknown Role
Unknown Role

Ari Kashiwabara

Unknown Role

Unknown Role

Unknown Role

Madoka
Unknown Role

Akira Suzuki

Satoko Mizuochi

Unknown Role

Unknown Role

Shuhei Naruse

Unknown Role

Unknown Role

Masao Nadamori

Stock Trader
Takuto Kato

Unknown Role

Clay Chambers