The year is now 2041 AD. A new enemy called Zeravire suddenly appears in the solar system, destroying all military installations it comes across. However, a wealthy man named Klein Sandman is already aware of this planned invasion and had been secretly preparing his army for battle. His trump card is Gravion, a giant robot that utilizes gravity as its source of energy. Meanwhile a young man named Eiji secretly enters Sandman's base in search for his missing sister. It is there that he meets another young man by the name of Toga... These two must now fight together with four other individuals aboard the super robot, Gravion to fend off the Zeravire threat.
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Eiji Shigure
MAIN
Kenichi Suzumura
Japanese
Toga Tenkuji
MAIN
Jun Fukuyama
Japanese
Eina
MAIN
Mai Nakahara
Japanese
Mizuki Tachibana
MAIN
Yuu Asakawa
Japanese
Klein Sandman
MAIN
Shou Hayami
Japanese
Leele
MAIN
Houko Kuwashima
Japanese
Luna Gusuku
MAIN
Haruna Ikezawa
Japanese
Cookie
SUPPORTING
Motoko Kumai
Japanese
Brigitta
SUPPORTING
Rie Kugimiya
Japanese
Alex Smith
SUPPORTING
Junichi Suwabe
Japanese
Tuile
SUPPORTING
Mikako Takahashi
Japanese
Raven
SUPPORTING
Hikaru Midorikawa
Japanese
Anya
SUPPORTING
Kurumi Mamiya
Japanese
Kaori
SUPPORTING
Masumi Asano
Japanese
Tesera
SUPPORTING
Ai Uchikawa
Japanese
Marinia
SUPPORTING
Nana Mizuki
Japanese
Cécile
SUPPORTING
