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.
Yuma Uchida
Nagisa Kiryū (voice)
Showtaro Morikubo
Kaito Sera (voice)
Sora Amamiya
Iris Shirasaki (voice)
Ari Ozawa
Mizuki Sera (voice)
Yu Kobayashi
Angelina (voice)
Minami Tsuda
Makoto Ryouke (voice)
Toshiyuki Toyonaga
Kojiro Kitahara (voice)
Aya Suzaki
Tsubasa Hanaoka (voice)
Takayuki Kondo
Sakugo Maioka (voice)
Kana Asumi
Yuna Nōtoshi (voice)
Shiina Natsukawa
Aki Kaminagaya (voice)
Yoshino Nanjo
Subaru Yamaki (voice)
Yui Horie
Kaoruko Takanashi (voice)
Kazuhiko Inoue
Kazehisa Kiryū (voice)
Hiroyuki Yoshino
Yūji Kiryū (voice)
Tomomichi Nishimura
Saigō Sasayama (voice)
![Teaser Trailer [Subtitled]](https://img.youtube.com/vi/hMpCFT7PjRo/mqdefault.jpg)
Teaser Trailer [Subtitled]
