A seemingly normal teenager and high school student, Gainer Sanga is a champion video game player with a penchant for combat games. Following his 200th straight victory, Gainer is awarded the title of &quot;King Gainer&quot; for his unrivaled skill in virtual battle. However, his carefree world of video gaming comes to an end when he is arrested in the middle of class by Adette Kistler on suspicion of being involved with the Exodus movement. Escaping confinement with a notorious Exodus contractor named Gain Bijou, Gainer's skill in combat is about to jump from the virtual world to the real thing, when the video game prodigy is tasked with piloting an Overman--a fierce fighting robot with a host of special abilities far superior to the standard Silhouette Engines which make up the mainstay of today's military forces. 

In the distant future, mankind is forced to live in domed cities called Domepolis after an environmental cataclysm. These cities are maintained and supplied by private corporations, but at what cost to the inhabitants living within them? In a Siberian Domepolis, virtual game champion Gainer Sanga is arrested on suspicion of Exodus, an unauthorized venture beyond the dome walls and strictly prohibited by the government. 
 
In prison, he meets Gain Bijou, a mercenary bent on escaping and together the two will steal a mysterious Overman out of Duke Medaiyu's mansion. Fighting back the Siberian Railway Patrol forces, they both lead a massive Exodus out of the city to the east land Yapan, where their ancestors are originally from. 
 
(Source: Bandai Entertainment)


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Son of voice actor [Akio Nojima](https://anilist.co/staff/95918). 
Elder brother of voice actor [Kenji Nojima](https://anilist.co/staff/95074).

Darrel Guilbeau is an American voice actor. He was recommend by friends to audition for Overman King Gainer and won the lead role of Gainer Sanga. Other notable roles include Hikari in The Melody of Oblivion and Sousuke Kawara in Samurai Champloo as well as Paranoia Agent, Stellvia, Koi Kaze, DearS, Rumiko Takahashi Anthology, Boys Be…, Captain Herlock, Cyborg 009, Ghost in the Shell: S.A.C. 2nd GIG, Kamichu! and the Pilot of Pretty Cure.    He has also multiple voices in the video games Radiata Stories, Romancing SaGa: Minstrel Song and the main character in an upcoming version of Culdcept. On film his voice can be heard in Red Water starring Lou Diamond Phillips, Bam Bam and Celeste with Margaret Cho and the hit Korean comedy Attack the Gas Station.

As an actor he has appeared on film and television in Windtalkers directed by John Woo, Alias with Jennifer Garner and The Comeback with Lisa Kudrow.

In the distant future, in a distant corner of Siberia, people live in domed cities called Domepolises. These are the primary human living spaces on Earth, which became uninhabitable years ago from environmental destruction. Now, parts of the Earth are becoming habitable again. Large portions of the Domepolises are breaking off to escape the powers that control the domes and trade. 
 
Gainer Sanga, video game champ on his 200th victory, becomes an unwilling helper in his hometown's Exodus when he is wrongfully arrested by the Siberian Railway. He pilots a giant mecha which he dubs 'King Gainer' after his own video game handle. He is challenged to fight other Overmen as Yapan tries to escape across Siberia.