Currently available on 4 streaming services.

Gravitation - watch online: streaming, buy or rent

Currently you are able to watch "Gravitation" streaming on Crunchyroll, Crunchyroll Amazon Channel or for free with ads on Retrocrush. It is also possible to buy "Gravitation" as download on Apple TV.

Cast

Tomokazu Seki
Shuichi Shindo (voice)
Kazuhiko Inoue
Eiri Yuki (voice)
Yasunori Matsumoto
Hiroshi Nakano (voice)
Ai Orikasa
Toma Seguchi (voice)
Fujiko Takimoto
Suguru Fujisaki (voice)
Kappei Yamaguchi
Ryuichi Sakuma (voice)
Ryotaro Okiayu
K (voice)
Takehito Koyasu
Sakano (voice)
Haruna Ikezawa
Noriko Ukai (voice)
Hideo Ishikawa
Tatsuha Uesugi
Rie Tanaka
Ayaka Usami (voice)
Shin-ichiro Miki
Taki Aizawa (voice)
Hiromi Tsuru
Mika Uesugi (voice)