Classroom Crisis
Humanity has successfully colonized all the planets in the Solar System, with intentions to continue into new frontiers. Individuals live stable lives in these colonies, including young high school students living in 4th Tokyo on Mars. Two of these students are Iris Shirazaki and Mizuki Sera. Iris is finishing her last year of high school while studying to be a test pilot while her friend Mizuki also works as a mechanic on the aircraft. Her own brother, Kaito, oversees Mizuki and Iris as their homeroom teacher and program director.
Shiina Natsukawa
Aki Kaminagaya (voice)
Yuma Uchida
Nagisa Kiryū (voice)
Minami Tsuda
Makoto Ryouke (voice)
Takayuki Kondo
Sakugo Maioka (voice)
Yoshino Nanjo
Subaru Yamaki (voice)
Toshiyuki Toyonaga
Kojiro Kitahara (voice)
Tomomichi Nishimura
Saigō Sasayama (voice)
Aya Suzaki
Tsubasa Hanaoka (voice)
Yui Horie
Kaoruko Takanashi (voice)
Sora Amamiya
Iris Shirasaki (voice)
Yoshino Nanjo
Angelina (voice)
Hiroyuki Yoshino
Yūji Kiryū (voice)
Showtaro Morikubo
Kaito Sera (voice)
Kana Asumi
Yuna Nōtoshi (voice)
Ari Ozawa
Mizuki Sera (voice)
Kazuhiko Inoue
Kazehisa Kiryū (voice)