The story takes place in an age where "Ajin" (demi-human), more casually known as "Demi," have slowly started to become accepted into human society. Tetsuo Takahashi is a biology teacher who ends up teaching three such Demi, hoping to understand more about them while also managing to catch their attention.
Minami Shinoda
Kyouko Machi
Kaede Hondo
Hikari Takanashi
Yoko Hikasa
Sakie Satou
Junichi Suwabe
Tetsuo Takahashi
Shiina Natsukawa
Kusakabe Yuki
Lynn
Takanashi Himari
