Gravion

Gravion (超重神グラヴィオン, Chōjūshin Guravion, lit. Super Heavyweight God Gravion) is an anime television series produced by Gonzo. It aired in Japan from October 7, 2002 to December 16, 2002 and ran for 13 episodes. In 2004, Gravion Zwei (超重神グラヴィオンZwei, Chōjūshin Guravion Tsuvai) ("Zwei" is German for "two") was released and aired from January 8 to March 25 in Japan, running for twelve additional episodes, answering the questions generated from the first series.

Both Gravion and Gravion Zwei were created and directed by Masami Ōbari with mecha designs from Kunio Okawara. Both series were released in the United States by ADV Films.

Plot

In Gravion, Eiji Shigure is sent a letter from his missing older sister Ayaka Shigure. His search for her leads him to Klein Sandman, a mysterious billionaire and Eiji secretly infiltrates his enormous Saint-Germain Castle while he is hosting a party for Earth Federation Alliance (EFA) leaders, in order to find her. He is tricked into piloting the G-Attacker, one of four Gran Divas, in a mission to defeat the mechanical extraterrestrials called the Zeravire. The Gran Divas are machines secretly created by Sandman himself, who states Eiji's unique G-Factor allows him to pilot it. Although reluctant, Eiji becomes part of Sandman's Earthgertz, the planet's only defensive team to prevent the Zeravire from destroying humanity, by combining the Gran Divas with the Gran Kaiser to form the titular mecha, Gravion.