Overman King Gainer (OVERMANオーバーマンキングゲイナー, Ōbāman Kingu Geinā) is an anime television series, created by Yoshiyuki Tomino, written by Ichirō Ōkouchi, and featuring character designs by Yoshihiro Nakamura, Kinu Nishimura and Ken'ichi Yoshida. The series ran from September 7, 2002 to March 22, 2003 on Japan's WOWOW network, spanning a total of 26 episodes.
Following the 2012 closure of Bandai Entertainment, Sunrise announced at Otakon 2013, that Sentai Filmworks has acquired Overman King Gainer, along with a handful of other former BEI titles.
The setting and plot of Overman King Gainer are a loose adaptation of the novel series La Compagnie des glaces by the French writer Georges-Jean Arnaud. After an environmental cataclysm, much of the world's population retreated into domed cities called Domepolis, which are run by an organization known as "London IMA" (International Management Authority) and its police arm, "Saint Regan". However, the Domepoli are maintained and supplied by privatized firms such as the "Siberian Railroad Company".
Many years have passed since the cataclysm, and many have begun to believe that the world environment has recovered sufficiently enough for humans to begin living outside Domepoli. As such, some inhabitants begin planning Exoduses to leave these cities and to resettle their ancestral homelands.
However, this does not sit well with the London IMA or the private firms that monopolize trade between the Domepoli, as the loss of people would not only lead to a loss in tax and trade revenue, but if the Exodus were to be successful, it would show the people that it was no longer necessary to rely on the London IMA or the private firms for survival.
They fiercely oppose any Exoduses, spreading propaganda on the evils effects of Exoduses on the Earth's environment, and using military force to prevent any attempted Exodus.
